1 definition by Blackice19

Top Definition
Pronounced "fee-fee". A slang term for methamphetamine made popular by the slang master of the Yay Area, E-40.
My partner used to be sharp but now he on fifi. What do fifi mean? Methamphetamine. I can't believe it man. He disappointed me. I'm devastated man, he lost cool points with me.
by Blackice19 April 05, 2012

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