1. To establish physical dominance over another by beating them into submission and/or unconsciousness.

2. In sports: To go into another team's home stadium, beat their asses, and send their pretty boy quarterback home cryin' to his mama.
Damn! Philly just opened a can of whup ass on Green Bay on Monday Night Football!
by El Jefe November 11, 2003
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/verb/ 1. to administer a beating on someone, usually using only hands, feet and other natural weapons
2. to verbally berate someone so badly that he is ashamed to show his face in public
Back off! Do you want me to open a can of whup ass on your bitch ass?
by Nasty Nate October 2, 2003
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a total beatdown that not only causes physical injury but total humiliation
last night i was at a college party

a lipstick lesbian opened a can of whup ass on a sorostitute

it was sweet
by Da Nastee One May 11, 2004
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Epic Whup-ass

An opened can of whup-ass so bad ass that the receiver of said whup-ass is left in a death like comatose state for an unspecified amount of time. Usually this type of whup-ass doesn't last very long but has lasting effects for a long time.
Dude, You opened up some Epic Whup-ass on those guys!
by Ornery Gorrilla January 28, 2015
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