2.(-adv) I apprehended the suspect in a donk manner.
3.(-adj) That was a donk-tastic sammich.
4.(-v) Dude, you should definitely donk on her face.
Origination: It is the short-hand for donkey, which is of course a synonym of ass through animal nomenclature.
Other: The term became exceedingly popular after Soulja Boy's song by the same name was released.
Boy 1 (pointing) : She got a donk!
Boy 2: Damn dude, she does have a donk.