22
When a guy who is naked bends over and you can see his sack hanging between his legs, beneath his butt.
My boyfriend bent over after his shower and I got a full view of his butt sack.
by stud masterson April 11, 2008
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23
Basically, it's a combination of the words ballsack and butthole. It can be used in place of either words, but doesnt have the same definitions as those words. It's used as an insult, with added emphasize on butt or asshole and ballsack. It's like calling someone a ballsack and butthole at the same time.(NOTE- symonms for butthole and ballsack can also be emphasized or used) ex.- ass-sack. Another way it's used is as a curse, like damn.
Doushe 1 - You butthole!

Doushe 2 - Oh yeah?!? Well, you're a ballsack!

You - You know what?You're both buttsacks!

Ex 2 - class, we have a test today! You - Oh buttsacks!
by 1gr8beatle April 15, 2011
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24
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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25
The skin between the buttcrack and the scrotum....
And/Or
Someone who is acting dumb or wierd
Ohh my, that guy just got kicked in the buttsack,
the person who did it must of been a real buttsack to do that
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26
"Why, he didn't even build a hero! What a buttsack!"
by Jangoniar August 26, 2003
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27
The combination of the nutsack, taint and butthole. Can be hit when kicking someone from behind.
"Open the door and kick him right in the buttsack" -Bruce
by Buttsack Lover October 21, 2011
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28
A puss filled pouch of skin found in anus or on the buttocks of grown men, used by rodents (usually mice or rats) for nesting, burrowing, gathering, ect.
I set a mouse trap in my cousin's buttsack in an attempt to catch dinner.
by Dr. Gertrude February 28, 2011
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