The sack in which a squirrel carries its acorns

The piece of cloth stitched into the interior layer of pants, shorts, and trousers, creating a cave which is often used to hold miscellaneous items. It is also colloquially referred to as a "pocket".

Where your nuts go

Sexy for some people and not sexy for others.

Ya Balls that make Babys

Nutsack

when you mess up you scream nutsack