Nut Bubble 

When a seated man farts, and the resulting air travels forward up your barse and builds up under your scrotum, creating a bubble, instead of exiting straight out your arse.

Jimmy kept a straight face even though he had a nut bubble, but when it was realeased, it was all over...

Nut Bubble by mata September 19, 2006

Nut Bubbler 

The result of farting in a bathtub and having the fart bubble tickle your sack. A fart big enough has been known to cause an erection or even, in rare cases, orgasm.

I don't need to jerk it now because I just had one hell of a nut bubbler in the tub.

Nut Bubbler by A Speelz March 10, 2010

Nut Bubble 

something a woman gets after giving some sloppy toppy and it gets a bit messy

"Ayo Linda u tryna give man slops" she then proceeded to have multiple nut bubbles

Nut Bubble by Dragonbattle06 December 17, 2021

bubble nut 

When you masturbate or have sex and you but but it's very bubbly

damn bro I just had the best sex and I had a bubble nut!

bubble nut by daniellebroccoli December 9, 2018

NutBubble

Bubble

Hey I just made a Bubble Nut!
NutBubble: The process of blowing a bubble while simultaneously nutting

NutBubble by Holmey January 3, 2019