Definitions by OOJG

LMAFO 

Acronym: "Laughing my ass fat off"

(v.) - to laugh so hard that you are ultimately burning fat from the butt.

LMAFO, that was the greatest video that i've ever seen!

Wow..that girl's got a giant badonkadonk....LMAFO

LMAFO by OOJG April 5, 2007