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Popular shortened version of "open up a can of whoop-ass," a statement generally used as a threat, but can refer to a beating/act of domination that occurred in the past.
1. "If ya'll don't stop your bitchin' I'm gonna open up a can!"

2. "I'm finna open up a can on your stanky ass"

3. "The kids were so out of control I had to open up a can right in the middle of the 7-11!"
by naborsG January 14, 2006
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