When someone moons you and u see his ballsack
His buttsack was showing while he was mooning me.
by Mike April 16, 2003
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This is a term used to describe someone who is an idiot or dork or dweeb.
Thtat buttsack took my lunch money!

Our teacher is such a buttsack.
by Ross Money Beck May 14, 2005
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"Why, he didn't even build a hero! What a buttsack!"
by Jangoniar August 26, 2003
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is a mucus y sack that hangs between the balls and the butt in the taint region. if it pops the mucus flow in to your blood stream and you die. a woman or man can perform sexual acts upon your butt sack. and it gets dry when your butt sack gets horny.African Americans and women do not have butt sacks.
hey man, your BUTTSACK is about to pop you should get that checked out.
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An adjective used to emphasize how you are feeling or how someone else is acting. Usually a negative connotation.
by Mr. Sizz August 2, 2010
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An impressively flabby and wrinkly ass, more commonly found on seniors, resembling a large nuttsack
Analing a Buttsack would feel more like fucking an airbag than pleasure
by swagmaster24 May 22, 2010
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