LMMFGDAO 

Lauging My Mother Fucking God Damn Ass Off

Used By even bigger n00bs than "lmmfao"

LMMFGDAO by Cordi July 17, 2005

LMFGDAO 

Short form of Laugh My Fucking God Damn Ass Off.

Depending on the person's age, gender, and many other variables, the use of LMFGDAO can be annoying, funny, or common ground between both.

LMFGDAO by Johnny Rocketfingers October 11, 2003