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The layer of fat or roll under the female belly button just above the good stuff.
Look at the piss sack on her?
by D0c February 21, 2006
Another word for bladder, used in the presence of a person who is offended by the word bladder.
"Oh, the basketball hit me right in the bla.... I mean piss sack!"
by Krevency August 12, 2005
Another word for bladder,

Another way of saying that sucks

An abbreviation For that is TAPS (Thats A Piss Sack)
1. Well... gotta empty out the piss sack
2. You cant come? thats a piss sack
by brroweni November 28, 2011