look up any word, like bukkake:
 
1.
The sound uttered by one after looking at a very ugly woman or a very skanky tramp. Comes from the two word phrase "Diseased One." Used to describe big sluts and nasty chicks.
What, Emily?! Doooo!
by G dubs April 26, 2006
 
2.
An animal that is really annoying as hell. Usually is found in the back of peoples' yards living behind their sheds. The animal is very popular because you can milk it for mountain dew.
There's a doooo animal living behind my shed, but I don't mind because now I can drink all the free mountain dew I want.
by killtherat January 21, 2012