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3. open (up) a can of whoop ass (on someone)

open (up) a can of whoop ass (on someone)

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open (up) a can of whoop ass (on someone)

To commit, engage in, or threaten physical violence (against someone). Sometimes said in a jocular or pseudo-serious manner. If that punk doesn't shut up soon, I'm gonna have to go over there and open up a can of whoop ass! My old man was the toughest guy in town when he was alive. He could open a can of whoop ass on anyone!

See also: ass, can, of, open, whoop