A
contraction of f*** it most commonly used out of boredom of something, or anger.
The f*** is cencored to just "F" while "it" is left at the end. Together "F" and "it" make "f-it" and that becomes "
effit".
Guy 1: Gaaaaaaaah
Guy 2: OMG RU OK?
Guy 1: I'v lost over 9000 lives
manray surving in
SMG... ya know what...
effit.
Guy 2: Don't worry I'll do this level for you.
Guy 3: Ug! I't been 2 hours... effit I'm going upstairs