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2.
Ass Dance: n. When an obnoxious person (usually drunk or stoned) dances to put emphasis on their state of Assholeism.

Cooper's "Ass Dance" on the pic-nic table, the boy was indeed a drunken fool. A naked drunken fool.
by Cooper T April 28, 2006
 
1.
A dance and antic when a dancer pulls his pants down to show his/her bare naked ass and dances

See Bare Butt Boogie

Derives from the anime Shin Chan
Shinosuke Nohara: Ladies and Gentlemen come buy a sasuage and see the dancing ass boy. Ass Dance, Ass Dance, woo woo!
by Andreasantoni May 24, 2008