Nut Flapper 

The astronomical phenomenon that occurs when a male farts in a certain position that causes the gust of air from the anus to rush under his scrotum and create a flapping motion

Dude i just laid a nut flapper.

Nut Flapper by Aliocac September 27, 2015

Flarper Nut 

Something one would say when their parents are around.

*dies in epic game of fall guys* YOU MOTHER FLARPER NUT

Flarper Nut by hey,nice_RoOsTer September 2, 2020

Nutslapper

A tremendously long bowl movement which, upon evacuating the rectum, falls forward, slapping the back of the scrotum before falling into the toilet.

Nate took a huge dump. One turd in particular was so long that it wound up being a nutslapper.

Nutslapper by thezfunk March 10, 2010

Atomic nutslapper

An Atomic Nutslapper is when you are getting head and your girl starts to punch your testicles like a boxer using a speed bag.

Person 1:Yo I heard you got head from Misty and she gave you an Atomic nutslapper
Person 2:Yeah my fucking testicles hurt bad

Atomic nutslapper by fuckcalebs November 24, 2019

A nutslapper 

A how that specifies her work in the testicular area of the male sexual organs

I couldn't really get that hard, she was a nutslapper

A nutslapper by The_commie_doggo February 25, 2019