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1.
Acronym for "Dance My Ass Off".
Text conversation: Going to SoBe 2nite to DMAO!!!
by TinManJones October 11, 2010
 
2.
DMAO stands for DOTA my ass off. DOTA is a custom map of Warcraft III Frozen Throne which stands for Defence of The Ancient.
"Lets DMAO."
"I am DMAOing."
by vvldi October 03, 2007