Top Definition
The skin sack that hangs below the penis
often inside the sack are balls
most men have bosacks unlike women.

stick my bosack in your mouth. please.
by captain crazy pants February 23, 2005
1 more definition
the balls and scrotum of a male mammal.
She gobbled on my bosack.

Cup the bosack.
by Elroy Fitz February 01, 2004

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