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jet v. to accelerate quickly; to go very fast.

John boy'ed v. when a riders face gets covered with spots of mud, making him look like "John Boy" on the Waltons. "I hit that mudhole and got John boy'ed big time."

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.

jump n. or v. where we now say bunny hop, BMXers used to say "jump".

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