1. important piece of male genitals that holds and protects the inner testes
2. a stupid fucker who does or says dumb shit and will not stop
1. Mother, once you are through with dinner, will you please wash my nutsack?
2. Mother, that kid Timmy is a frickin' nutsack.
by dustin January 13, 2004
1. A synonym for scrotum, which protects and houses the male testes. Should not be forcefully attacked for any reason.

2. Some asshole using my name to make stupid definitions. *thumbs down*
Get your own name, nutsack.

His nutsack was ripped open when he landed on that pipe, and his balls spilled out.
by Inimical November 8, 2004
1.) n. A sack of (pea)nuts.

2.) n. An extremely common slang term for the scrotum.
1.) How much for a nutsack?

2.) I have an itchy nutsack.
by r0akh December 20, 2006
to tackle someone's testicles, resulting with the person lying on the floor writhing in pain and cursing the nutsacker's existence to the depths of hell.
Man, that guy was so mad, I though he was going to nutsack me in a dark corner of the room.
by infiniti August 16, 2003
To show another person one's scrotum for fun and profit. Usually followed by a loud exclamation of "NUTSACK!" to alert the public.
"Hey, Bob, Look!"
"That's disgusting!"
"NUTSACK!!"
by The Jack of Hearts September 20, 2005
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".
Oh no, my nutsacks are filled to the brim with tennis balls!
by TAJWAR May 14, 2011
when you mess up you scream nutsack
Courtney: Dude I lost your wallet.
Rachel: Oh NUTSACK.
by Imfat.ha May 31, 2010