What is Gift Sack?
1.
The scrotum forms an admirable covering for the protection of the testes. These bodies, lying suspended and loose in the cavity of the scrotum … are capable of great mobility, and can therefore easily slip about within the scrotum, and thus avoid injuries from blows or squeezes.
"I've got a couple things for you in my gift sack."
"Here's 0-2 pitch to A-rod. Oh! And he's taken it right in the gift sack!"
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