Sac-O-Lantern 

A drawing of some sort of face resembling a smiley face or Jack-O-Lantern on ones scrotum or ball sac

Also an alcoholic shot consisting of half Peach Shnaps and half Southern Comfort

John quit using my sharpie makers to draw Sac-O-Lanterns on your nuts

Sac-O-Lantern by Jaco Alfonz August 8, 2008

sac-attack 

1. an attack on one's sac.
2. an attck from one's sac.
3. an attack on one's sac from another's sac.
4. sac civil war; war between the sacs; attack between the sacs on one's crotch.
5. see also: ding-a-ling-a

is the left one winning this sac-attack?

sac-attack by kris wiggam February 13, 2003

Sac Jack 

To jerk only your sac when masturbating. Not the normal occassional tug on the sac, but pulling so hard that you nearly rip it off causing severe pain and swelling in the testicles. Usually done in conjunction with the bloody jack.

Your mom is hot, I think I'm going to sac jack to her and then beat the fuck out of her.

Sac Jack by Rev. Reggie Dingleberry August 24, 2004

sac clap

When two dudes' nut sacks slap when they are double penetrating your mom.

bitch: Wow boys you're really pounding me hard, I can hear your sacks claping!

sac clap by the clapper October 22, 2003

Sac jockey 

A person who is constantly bothering you or biting your style. Thus, they ride your sack like a jockey rides a race horse.

"Hey Tom, here comes Jim."

"Yeah, I see him."

"Why does he have to dress just like I do?"

"Well, he's a sac jockey."

Sac jockey by Hammy Sagar December 3, 2005

sac cruncher 

a males genetals that have been crunched or broken up into tiny pieces using a nutcracker or human teeth.

my girl just gave me a sac cruncher

sac cruncher by mtballa323 December 7, 2010

sac rattler 

When a dude farts and it rattles his nuts

My balls were itchy so I cut a sac rattler and it fixed it

sac rattler by Sacrattler May 26, 2018