Skip to main content
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.

Whacky Sack 

physical disconfort in the scrotum due to excessive masterbation. Most commonly induced by the testicles slamming against the inside of the thighs/groin area for an elongated period of time.
Jeremy: The Pat's chance at a playoff run is ruined!

Isaiah: Why? What happened?

Jeremy: Brady is out 7-9 weeks with whacky sack!

Isaiah: I guess Giselle just isn't doing it for him anymore .
Whacky Sack by Scoopdevious December 1, 2016

Whacky Sack 

To massage one's own balls and scrotum in a pugnacious manner.
I Hate Jenny, I wish I could beat the meat out of her. I'm just gonna go play Whacky Sack.
Whacky Sack by Asian Lover July 16, 2008

Whacky Sack 

His whacky sack looks a little swollen!

Whack Sack

Common name for "testicular akathisia"--also commonly known as "jimmy nuts": an uncontrolable urge to persistently shift, manipulate, or joggle one's testicles.
"Yo--he got he the Whack Sack serious. Dude plays with his nuts all day."
Whack Sack by Even Cleaveland January 3, 2007

Wacky sack 

An uneven ballsack . When one testicle sits lower than the other.
That guy I hooked up with had a wacky sack
Wacky sack by Geoff1993 October 4, 2017

sack whack 

Striking a guy one in his testicles. Sack whack may refer to striking the testicles in several different ways including:-
- slapping
- tapping
- punching
- kicking
- elbowing
- twisting
- pinching
- backhanding

Sack whack is also known as:-
- Sack tapping
- Nut check (often said before the sack whack occurs)
- Nut tag
- Bag tag
- Bell flicking
- Roshambo, originating from 'Mecha Streisand', one of the earliest episodes of the American animated comedy cartoon, South Park .

'Sack' refers to the scrotum.
Gary: I don't care what you think , I'm doing it.'
Natasha: 'You dare and I'll sack whack you one!'
Gary: 'Oh sorry, I didn't know that. I do want to have kids some day.
sack whack by Online Fan December 30, 2016
More from Urban Dictionary

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026
Load more