Top Definition
Means:
'Oh My Fucking God Laugh My Fucking Ass Off'.

Can be used on Aim, Myspace, Facebook, Etc.
Aim Conversation

Person 1: AND THEN HE FELL!!!

Person 2: OMFGLMFAO!!!
by Meeeeppppssseesss June 21, 2008
6 Words related to OMFGLMFAO

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