Fif: means to plead the fifth amendment; to not tell something to someone else because of whatever circumstances.

In the superlative, fif can be written as "fizzif"
Example 1: Rick: "Tell me what happened last night with that hot chick!'
James: "fif"

Example 2: "I plead the fif!"

Example 3: "I can tell you that I plead the fizzif"
by Charlie Murphy June 10, 2004
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In French (Eastern Canada), a " fif " is someone who's homosexual or acting like it.
Le féminin de "fif" est "five"
Sti qu'té fif !!!
Té five mon homme !!!
by laurent September 26, 2005
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low-grade marijuana, shwag, middies, etc. "fifth" or "fifty" also acceptable.
"I don't have much money so let's split a bag of fif and roll the L. Be on the float before long"
by Yuri Dadinov October 6, 2011
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-Have you seen 50's new video
-Yeah, fif is crazy
by bush_is_pussy January 13, 2011
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"I saw the fif show last night, it was nuts!"
by natté April 20, 2005
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Short for "Funny In the Face" word discovered by Just0 and MurDa... inspired by Nash
"WoW, That Chick is a FiF, did you see that face??!!!!"
by MurDa_Los April 3, 2006
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