1. A song by Nicki Minaj and Big Sean, actually called "Dance A$$" but while shitfaced the name is often misinterpreted as being "Drunk Ass" by drunk people.
2. A very drunk person, wobbling around the party falling all over things like coffee tables or couches. Guys named Doug are usually the ones to fall on coffee tables.
"OMG Doug was such a drunk ass, he fell on the coffee table and lay in broken glass for like 10 minutes!"
"Wow, what a drunk ass! Ahaha"