Definitions by AmazingToastMan

LMFAO

Laughing My Fucking Ass/Arse Off. Use in the same context as lol, rofl and haha.

Also a Music Duo with skyblu and redfoo.

Person 1: I was walking across the street and an old lady offered to help me across he road. What the hell!?

Person 2: LMFAO, why?

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