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1. internet shorthand usually meaning 'covering my mouth giggling'. Often used in online multiplayer games to suggest that comeback was extremely funny.

Taking the gayness of aol short-hand to an all new level
Player A: stfu noob
Player B: I did your sister

Player C: cmmg
by Mangina4u October 14, 2005

Words related to cmmg

lol noob nub omg omgzor