1 definition by Liquidglowfish1
Pronounced "Fim-bo" this acronym stands for the common slang of extremely rigorous and satisfying coitus. Slang terminology is Fuck(ed) My Brains Out. It is phrase more common among the younger male demographic; however it has been known to be used by both the Super Fucking Cool Chick and SLUT demographics of the female gender.
Present tense: I really wish that my new secretary would FMBO. I'd give her a big fucking raise if she did.
Past tense: My secretary FMBO'd me last night. It was fuckin great, I fired her today though cuz she spilled coffee on my goddamn TPS Report.
Past tense: My secretary FMBO'd me last night. It was fuckin great, I fired her today though cuz she spilled coffee on my goddamn TPS Report.
by Liquidglowfish1 January 6, 2009