Top Definition
Laughing My Ass Off And Pooping. Used as an online acronym when something is so funny, it makes you laugh so hard it forces the dooky out of you. Similar to how tickling some one can make the victim have to pee.
"Wow! I can't believe he tripped on a banana peel! LMAOAP!"
by Dark Arsonist December 27, 2004
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