To beat someone's ass so severely that without even fighting as hard as you can, there is no doubt that your opponent is severely outclassed. This term is most appropriate when administered by someone who is from a rural area, especially when it's given to a nancy pants city boy.
Bo & Luke found the man from Atlanta who groped Daisy and gave him a good old fashioned country ass whooping.

In the state championship football game, East Podunk HS gave City Boy HS a good old fashioned country ass whooping. The score was 63-0. After the first quarter. Then East Podunk put in their first string.
by I love Liepaja November 9, 2010
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ur momma about to slap yo ass so hard u will fly to da moooooooooooooon
Mum: you havent done ur home work so its time for ur ass slapping/whooping Guy
Guy: *dies from da ass slapping/whooping lol*
by I did ur mother at November 17, 2021
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\`whoop 'ass\ n.

A dangerous substance, usually found packaged inside cans. When released, can cause major damage to the person it is intended for, and is often used as a weapon of destruction. More often the user warns the recipiant of an imminent opening of a can, if the recipient does not act as desired by the opener.
"If you don't shut up i'm gonna open up a can of whoop ass!"

"If you go ahead with that plan, you're gonna see me open up a can of whoop ass on you!"
by Comic Relief February 28, 2005
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You've obvs done something wrong, so someone will come and get you and beat you up litterly
Amy: I cant believe he dumped you! I'm gonna whoop ass him!
by tard-o-licous July 2, 2009
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noun - figure of speech meaning "act of violence" generally employed as "open up a can of whoop-ass," meaning to cause large amounts of pain
by Blackmac November 25, 2003
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Pursuing this course may cause fisticuffs to follow (on your ass).
Do that again and I'm gonna open up a can of whoop-ass on you!
by mandingoh December 10, 2004
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To much whoop ass to fit in a can~! (see: can of whoop ass
I'm about to tap a Keg o whoop ass on dat bizzotch
by Vexlxix November 17, 2003
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