Top Definition
Puerto Rican slang denominator for the Drag Racing enthusiast.
Also used when referring to a person that is very involved in a hobby or pastime.
Joe is a "fiebru" I need to set a grudge match race at the 1/4 mile track with.
Dave is a baseball "fiebru".
by Joel5.0 September 22, 2008
5 Words related to Fiebru

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