A degenerate middle school/high school aged child who runs up behind people with a lighter and sets their crotch area on fire. The child will then proceed to yell about how they got "Biscuit Crisped" and then runs off leaving the man with a burning cock n' balls.
Bob: Who is that?

Joe: That's Billy, he's the worst Biscuit Burner in town.
by IIIIEFIUOHEOWIUFHJAIL January 6, 2021
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A tricked out, modified British vehicle, usually an overland vehicle (similar in concept to a rice burner - tricked out, modified Asian car), but with one possible difference (not always true). Usually, someone with money would spend the money on modifying such vehicles, whereas younger people will trick out their Asian cars any way they can afford. This can be applied to SUVs in general.
I don't believe this... Look at this! Look at this biscuit burner going by. You sure can't take that Range Rover anywhere off-road!
by Deaf Drummer August 20, 2010
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