LMDAO

Acronym for "Laughing My Dead Ass Off"
Usually used in text messaging for one to convey that they are seriously laughing at a funny occurrence/joke/meme/ect.

Boy1: Dude check out this meme....
Boy2: LMDAO!! I can't!!!!
Boy1: Dead Ass??

Boy2: DEAD ASS!!!

by Urbaneee December 15, 2016