when your sweating so bad the only way to describe it, is refer to how much your balls are sweating
dude its so hot im sweating sack
by foxsman September 8, 2008
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Another way of saying, no problem, or not my problem
hey did you hear about Jan losing his license?

yeah, i heard, no sweat off my sack though....
by Bam 9 October 10, 2010
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When the scrotum sack is put in between the lip and bottom jaw like dip then swished around.
Dude my best friend ernest and i gave each other Sweat sacks
by LOL BONER December 18, 2011
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