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3.
Also IMFO or imfo, could stand for either "I'm fucking original" (usually used in a sarcastic or mocking fashion) or "In My Fucking Opinion" (usually tacked on at the end of a sentence).
Fag: Check out my Sonic recolor.
Queer: Oh, ImFO.

Nancy Pelosi: We need to work toward the goal of equalizing income in our country and at the same time limiting the amount the rich can invest.
Thinking Man: We need to work toward shutting you fucking mouth, IMFO.
by Fuck Shit Piss February 27, 2008
 
1.
phrase. In My Fucking Opinion.

A slang derivative of IMO, usually used with anger.
Guy 1: Computer games are for fags.
Guy 2: You need to shut the fuck up, IMFO
by Shifty Eyed Goat July 15, 2004
 
2.
Also IMFO or imfo, could stand for either "I'm fucking original" (usually used in a sarcastic or mocking fashion) or "In My Fucking Opinion" (usually tacked on at the end of a sentence).
Fag: Check out my Sonic recolor.
Queer: Oh, ImFO.

Nancy Pelosi: We need to work toward the goal of equalizing income in our country and at the same time limiting the amount the rich can invest.
Thinking Man: We need to work toward shutting you fucking mouth, IMFO.
by Fuck Shit Piss February 27, 2008