F.IF = Fart Induced Fit. The mad flailing of arms and nose pinching that happens as soon as a fart is smelt by the person unfortunate enough to be in the room when somebody else farts.
Hey man I did the best fart the other day but my girlfriend had a total F.I.F.
or, on seeing someone's reaction to your fart you can say "Don't F.I.F out on me now!"
acroynm= Farted.In.My.Pussy. Refers to when a woman is seated in a certain position where gas is expelled from her asshole and winds up in her chocha. may also be referred to as a reverse queef.
Hey honey, did you F.I.M.P. when we went over that last speed bump? Yeah, we should probably wait a little while before we fuck...