FIM

(F)uck (I)t (M)entality; (letters are spoken, it is not said as it sounds) When you are absolutely making a bad decision, but you decide to go through with it anyway because why tf not. The time for regret is on your deathbed.

“Should I do it?”

“Yeah man, FIM! Fuck it mentality!”

by DumbBitch2.0 September 28, 2021

FIM

Fuck It Mate/Fuck It Man

(Texting)
Payton: I’m gonna go to the party on Friday
Kate: You can’t you’ll get grounded
Payton: FIM

by Raspberry_21 January 27, 2018

FiM

Female who identifies as Male.

I was born female but I identify as Male. I'm a FiM.

by WordsyMe February 21, 2020

mi fim

someone who is smart and very intelligent

the person writing this is very mi fim

by mi fim August 7, 2021

Fim

Fim is an alternative word for heck, usually used as the emo version. Created during a fit of laughter.

John: "ur mom"
Gerard: "WhAT ThE FIm JoHn"

by burnrai June 1, 2019