The Dictionary of Mountain Bike Slang

Brizza

Auger v. to involuntarily take samples of the local geology, usually with one's face, during a crash. See face plant.

Bagger n. one who always agrees to ride, party, gather, etc. but rarely shows. bag v. to fail to show. "Tom swore he'd be there but he bagged."

Brain sieve n. a helmet featuring more vents than protective surface.

Brand whore n. a rider that will only buy high-end parts/gear with name recognition. Wouldn't be caught dead using LX level parts or wearing a pair of Nashbar shorts.

Chinese toe cuffs n. see toe clips.

Clipless adj. misleading name for a pedal-and-shoe system where the clips or cleats clip onto the soles of special shoes. Called "clipless" because they replaced toe clips.

Death cookies n. fist-sized rocks that knock your bike in every direction but the one you want to proceed in.

Drillium n. any part with lots of holes drilled in it to make it lighter.

First blood n. credit to the first rider in a group who crashes and starts bleeding as a result

Foot fault n. when a rider can't disengage his cleats from the pedals before falling over. See horizontal track stand.

Fred n. 1) 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".

Gravity check n. a fall.

Gutter bunny n. a bicycling commuter.

Impedimentia n. all the junk on a bike that impeeds performance and looks bad.

JRA n. acronym for "Just Riding Along," a phrase universally uttered by people bringing both halves of their frame and the remains of their fork in for warrantee replacement.

Unobtanium adj. describing a bike or accessory made from expensive, high-tech material. A play on "unobtainable" and "titanium." n. a piece (of god knows what) that has come off from the inside of something else and rattles around, impossible to retrieve to stop the rattling. E.g. a piece of weld comes off of the inside of a bike frame.

Vultures n. spectators who line up at dangerous obstacles in hopes of seeing blood.

Weight-weenie n. 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.

Yard sale n. (from skiing) a horrendous crash that leaves all your various "wares" -- water bottles, pump, tool bag, etc. -- scattered as if on display for sale.

A full list can be found at:The Dictionary of Mountain Bike Slang