well the hot link isn't working... so here's the copied and pasted version:
Air: space between the tires and the ground. (Both tires must be off the ground or it isn't "air".) Said to be caught or gotten. See sky.
Ano: frequently-misspelled abbreviation for "anodized".
ATB: All-Terrain Bike or Biking. A synonym for MTB.
auger: to involuntarily take samples of the local geology, usually with one's face, during a crash. See face plant.
bacon: scabs on a rider's knees, elbows, or other body parts.
bail: to jump off in order to avoid an imminent crash.
biff: a crash. Synonyms: involuntary dismount, wipeout. v. "I biffed and then wiped away the blood."
biopace: a now-discredited Shimano techno-fad where the chainrings were made intentionally not circular -- instead, they were elliptical, in order to (allegedly) smooth the power delivery, by giving the rider an effectively lower gear for part of the spin cycle. Now used to describe any uneven pedaling motion. Also used as a synonym for pogo-ing.
boing-boing: a bike with full (front and rear) suspension. Might possibly be considered offensive by certain owners of said bikes.
bonk: to run out of energy or grow exhausted on a ride. "I bonked so early it was embarrassing."
bring home a Christmas tree: to ride (or crash) through dense bushes, so leaves and branches are hanging from your bike and helmet. See prune.
BSG: acronym for "Bike Store Guy".
bunny hop: to lift both wheels off the ground by crouching down and then exploding upward, pulling the bike with you. Useful for clearing obstructions, such as curbs, potholes, logs. Differs from its older BMX & trials meaning -- see jump.
buzz: euphoric feeling. Commonly used after a particularly hard assage is successfully completed. "I got such a buzz after that uphill grunt."
carve: (from skiing) to ride with great speed around the corners of a twisting fire road.
captain crash: to "go down with the ship". Usually the result of a novice spud-user failing to clip out in time.
cashed: to be too tired to ride any farther; bonked.
chainring tattoo: the dotted-line scar you get from gouging your shin on the chainring. See rookie mark.
chainsuck: condition when the bike chain gets jammed between the frame and the chain rings, or when the chainring is so worn that it holds onto the chain and lifts it up to meet the incoming part of the chain.
clean: to negotiate a trail successfully without crashing. "I cleaned that last section."
clipless:misleading name for a pedal-and-shoe system where the clips or cleats clip onto the soles of special shoes. Called "clipless" because you can't see the clips when you're clipped in. Contrast with toe clips.
clip out: (or, sometimes, click out) v. to disengage one's spuds.
cloon: slamming into the ground, resulting in a ringing head, or a delay in the action. Term used in biking, skiing, and snow boarding.
corndog: to become covered in silt, usually after a fall.
crotch-testing: sudden impact between a male rider's private parts and something very hard and pointy, such as a handlebar stem or seat.
curb grind: expensive erasure of low-hanging, shiny parts of the bike on a curb or rock.
curb slide: to place the front wheel up on a curb and allow the rear tire to scrape along the curb, usually resulting in a loud tearing sound.
dab: to put a foot down in order to catch your balance on a difficult section of trail. "I made it without crashing, but I had to dab once."
death cookies: fist-sized rocks that knock your bike in every direction but the one you want to proceed in.
death march: a ride that turns into an investigation of your endurance limit. "The bridge was out, and I had to go all the way back the way I came. So the morning's nice, easy ride turned into a Bataan death march."
dialed in: when a bike is set up nicely and everything works just right.
digger: a face plant. "Look at that guy on that gnarly single track... he's going to go over the bars and do a digger."
dirt bike: an off-road motorcycle. Usually louder than MTBs.
drillium: any part with lots of holes drilled in it to make it lighter.
dual-track: a dirt road used by four-wheeled vehicles rarely enough that their tires have made ruts that became parallel singletracks. Also called doubletrack. See singletrack.
endo: the maneuver of flying unexpectedly over the handlebars, thus being forcibly ejected from the bike. Short for "end over end". "I hit that rock and went endo like nobody's business." See "superman". In BMX riding, "endo" used to be a synonym for front wheelie.
engine: the rider.
face plant: hitting the ground face first. "Joe hit a tree root and did a spectacular face plant." Synonyms: auger, digger, soil sample, spring planting.
first blood: credit to the first rider in a group who crashes and starts bleeding as a result.
foot fault: when a rider can't disengage his cleats from the pedals before falling over. See horizontal track stand.
fred: a person who spends a lot of money on his bike and clothing, but still can't ride. "What a fred -- too much Lycra and titanium and not enough skill." Synonym for poser. Occasionally called a "barney".
front wheelie: what endo used to mean in BMX: a trick where the rider applies the front brake and lifts the back wheel off the ground; this is the basis for many BMX tricks. Most riders cannot pedal effectively while doing a front wheelie.
FS or F/S: an ambiguous term, can mean Front Suspension or Full Suspension. Not used by anyone who wishes to be understood.
giblets: all the colorful parts and pieces that you can add or change out on a bike.
gonzo: treacherous, extreme. "That vertical drop was sheer gonzo."
granny gear: the lowest gear available on a bike, which only a grandmother would need to use; designed for steep uphill climbing, but extremely easy to pedal in on flat ground.
gravity check: a fall.
grindies: e.g., "All that dried mud and sand left me with a loud case of the grindies in my drivetrain."
grunt: a very difficult climb, requiring use of the granny gear.
gutter bunny: a bicycling commuter.
half-track: a trail so narrow and/or overgrown that you'd hesitate even to call it singletrack.
hammer: to ride fast and hard. n. someone who hammers.
hardtail: any bike with front suspension but no rear suspension. Contrast with rigid and F/S.
HOHA: Hateful Old Hikers Association. "HOHA members hate mountain bicyclists with a fervor exceeding that of rabid wolverines."
horizontal track stand: a foot fault that happens at a stop sign. Kathunk..
IMBA: International Mountain Biking Association. An organization for trail advocacy.
involuntary dismount: a crash.
jump: where we now say bunny hop, BMXers used to say "jump".
kack: an injury to the shin received while doing trials, a kack can be the result of any injury receive during technical riding.
kick-out: a bunny hop in which the rider pushes the back tire to one side.
LBS: acronym for "Local Bike Shop".
line: the desirable path or strategy to take on a tricky trail section.
mantrap: hole covered with autumn leaves, resembling solid earth and effective at eating the front wheel of the unsuspecting rider.
Marin: (muh RINN') the county in Northern California where MTBing is said to have been invented. Just north of the Golden Gate Bridge.
mo: momentum. "If you don't get in gear at the bottom of that hill, you'll lose your mo."
mojo: charm or icon worn by a biker or attached to the bike.
MTB: the activity of MounTain Biking. Or a mountain bike itself. v. "MTBing". See ATB, OHV, ORV, VTT.
mud diving: what happens when a bike slows abruptly in mud, throwing the rider into wet goo.
nard guard: used to prevent wang chung.
nirvana: the state of being in absolute control and totally in tune with your bike, the trail, and your physical strength. "I was just doing it all so smoothly and delicately and quickly, it was nirvana!" Synonym for The Zone.
NORBA: National Off-Road Bicycling Association. They organize most of the larger races.
OHV, ORV: Acronyms for Off-Highway Vehicle and Off-Road Vehicle. These have motors and are not bicycles.
over-the-bar blood donor: a rider who is injured while doing an endo.
pogo: to bounce on a full-suspension bike like a pogo stick. Also, for a full-suspension bike to bounce annoyingly and uncontrollably.
poser: derogatory term for people with $7,000 bikes that never see an actual trail. Usually found near a trail head and never dirty. Seinfeld may be an example. Synonym for Fred.
potato chip: a wheel that has been bent badly, but not taco'd.
powerbar: The mush bar of choice for all hardcore MTBers.
powerslide: a two-wheel sideways slide, with the foot opposite the direction of travel kept on the ground.
prune: to use one's bike or helmet to remove leaves and branches from the surrounding flora. Usually unintentional.
push-push: 1. a novice's pedaling motion, consisting of alternately pushing each foot down, instead of spinning. 2. a Shimano techno-fad shifting system.
R&D: Ripoff & Duplication, or Research & Development.
rag dolly: to wreck in such a way that one's person is tossed like a flimsy scrap of cloth."Did you see me rag dolly back there? I think I pierced my ear on a tree branch."
retro-grouch: a rider who prefers an old bike with old components and isn't fond of new, high-tech equipment.
'rhoid buffing: going down a hill so steep that your butt touches the rear wheel.
rigid: a bike with no suspension.
roadie: a rider who prefers riding on paved surfaces. Usually a derogatory term when used by MTBers.
road rash: large abrasions on a rider's legs and body caused by a crash, particularly on asphalt.
rocket fuel: the mandatory pre-ride coffee and Powerbar.
rookie mark: chain grease on a rider's pant leg. "Give that guy extra points for his rookie mark. It's even on the wrong leg!" See chainring tattoo.
roost: to go fast or accelerate quickly. Or, to stop suddenly. Usually the latter.
singletrack: trail just wide enough for one person or bike -- the MTBer's holy grail. Contrast with dual-track.
skid lid: helmet.
sky: to jump extremely high. To get big air.
snake bite: a double puncture of an inner tube, caused by hitting an obstacle too hard or by under-inflation of tires.
snowmine: an object hidden by snow on the trail. "Be careful of the snowmines -- you know, rocks, logs, hibernating bears..."
soil sample: a face plant.
spin: smooth pedal motion. Opposite of push-push.
spring planting: a face plant.
spuds: "SPD" (Shimano Pedaling Dynamics) clipless pedals.
stack: crash. v. crash with multiple riders after hitting an object.
steed: your bike, the reason for your existence.
stoned: describes a rider after a crash which imbeds stones into the rider's skin. Or the affects of a good after ride smoke in the team microbus, the VW of Choice for hardcore riders.
STI : "Shimano Total Integration" -- a marketing ploy that forces you to buy new brakes when you replace your shifters.
superman: a rider who flies over the handlebars and doesn't hit the ground for a long time. This may result in injury, but when it doesn't, it's really funny for everyone else.
schwag: the stuff that manufacturers and vendors donate to be given away at bike related events. When you race, go to bike shows, help put on events, write bike articles, you are often rewarded with schwag. Sometimes called "swag".
table-top: a jump in which the rider throws the bike sideways in mid-air. Less commonly, a jump made over a hill that reaches a plateau and goes back down.
taco: to bend a wheel over on itself, in the shape of a taco. "I taco'd my wheel, and it cost me a hundred bucks." Worse than a potato chip.
tea party: when a whole group of riders stops and chats, and nobody seems to want to ride on.
technical: a section of trail that is difficult to ride because of rocks, tree roots, steep drops.
techno-fad: a screwy or unique technology that a dominant company (usually Shimano) tries to foist upon the innocent cycling public. Past techno-fads include Biopace chainrings, and overly complex "thumb-thumb" or "push-push" shifters.
techno-weenie: a rider who knows more about the newest MTB parts and techno-fads than about the trails. Someone who buys lots of gadgets to add supposed iotas of performance to the bike. Greeting a friend whom we haven't seen in a year, I might say "Hi, Jurgen!" A techno-weenie might say "Oooh, you got White Industries hubs on that bike now?"
three-hour tour: a ride that looks like a piece of cake at the outset but turns out to be a death march. Derived from the theme song to "Gilligan's Island."
tin: titanium. Some riders would replace their watches, rings, glasses frames, and gold tooth-fillings with titanium if they could afford to.
toe clips: a clip-and-strap system that connects a rider's feet and toes to her pedals. Toe clips usually don't require special shoes.
track stand: (from road-cycling) a maneuver where the rider stops the bike and attempts to remain standing.
trail swag: equipment or accessories dropped by other bikers and found on the trail. A Kewl bonus for the finder, a bummer for the dropper.
tricked out: when a bike has the latest and hottest components.
tweak: a jump during which the rider twists the handlebars back and forth in mid-air, the more times the better. v. 1. to slightly injure a part of the body or the bike in a crash. "I tweaked my wrist when I fell." 2. to make a minor adjustment. "My brake pads were rubbing but I tweaked the cable and it went away."
unobtanium: describing a bike or accessory made from expensive, high-tech material. A play on "unobtainable" and "titanium."
vegetable tunnel: a singletrack that is heavily overgrown with foliage, so a rider must duck and bend to get through it.
VTT: Velo Tout-Terrain, the French term for mountain biking. Velo = bike, Tout = all, and don't even ask me about terrain. It's not terribly complex .
wang chung: what you might get when your stem has no nard guard. See crotch-testing.
washboard: small undulations of the soil surface that make for a very rough ride.
wash out: to have the front tire lose traction, especially while going around a corner.
weight-weenie: a MTB owner (not even necessarily a rider) who is more concerned with how many milligrams a certain component saves off the bike's total weight than with how to be a better rider.
wheelie: lifting the front wheel off the ground, usually with some combination of pulling on the handlebars, pedaling harder, and balance.
wild pigs: poorly adjusted brake pads that squeal in use.
wipeout: a crash. v. ("wipe out") to crash.
wonky: not functioning properly. "I bailed, and now my wheel is all wonky and all I hear are wild pigs."
XC: An abbreviation for "cross country." Typically it is used for cross country racing.
yard sale: (from skiing) a horrendous crash that leaves all your various "wares" -- water bottles, pump, tool bag, etc. -- scattered as if on display for sale.
The Zone: a state of mind experienced while riding. You don't think, you just do. A truly mystical experience that can't be fully explained, but when you get there you'll know it and strive to reach it again.
zone out: a state of mind where you think you've reached The Zone, but you really just stopped paying attention to what you're doing. Usually used as an excuse for a particularly embarrassing biff.