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When you beat the shit out somebody because you feel like it and you can. Often caused by someone being a little cocksucker and needing a good ass beating.
"I don't like the way you're talking to me. That's a Boonswaggling."

"One time this bartender wasn't paying attention during a bar fight and stepped around a corner in the dark... Straight Boonswaggled."
by AC123AC August 22, 2012
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