Top Definition
Inserting one's ballsack into a 'space bag' whereupon an airtight seal is achieved, essentially 'locking in' the freshness of the ballsack for others to enjoy at their later convenience.
"Dude, I was vacuum-sacking my nutsack for my girlfriend. She gets back in three months and I want to preserve all the goodness for her".
by Monagle July 29, 2011
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