Your friend offers you one more glass of wine on a Friday evening. You know you shouldn't but FIF (Fuck it, it's Friday).
by JohnnyQuestisgay November 12, 2011
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This is a word used when someone else does something stupid. When the person does something stupid, you put your hand on his/her neck and slide it off fast, or if someone does something really stupid you give them an uber fifs, when you include some fingernail in your fifs and that makes it hurt a little.
That kid just hit his head on a plank of wood. Fifs on him
by Harry2317 November 24, 2007
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You're a wanker mate. Let's FIF and ill show you who is the wanker.
by Pratikthefreak December 17, 2016
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Used when selling items to people via internet
Means First in first served
“SELLING- FIFS NO MUCKING AROUND
by YoungGranny January 1, 2020
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"I saw the fif show last night, it was nuts!"
by natté April 20, 2005
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Bob: "Where were you last night?"

Carol: "I was talking to Alice"

Bob: "You stood me up for a FIF?"
by timbora October 19, 2009
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