Gusser 

Extremely insulting slur for a belly button, often used as a derogatory name for someone or soemthing

Will: I’m playing with Toad in Mario kart
Penton: Bruh Toad is a gusser

Gusser by johndickens69 March 12, 2018

gusset typist 

A woman who masturbates. Also gusset pianist. As in “I’ve heard she plays the gusset piano”.

gusset typist by cracky March 1, 2003

Gumser 

A toothless blowjob.

Hey Peck, How was Thailand?

Great! I got a Gumser from one of the lady-boys.

Gumser by Rotten40 November 20, 2011

Gusher Crusher

The act of sticking Gushers into your partner's anus, having them clench hard enough to burst the gushers open, then sucking the gusher goo from their cornhole

Amanda: "Justin gave me a Gusher Crusher last night. I gotta say, it was pretty fun"

Laurel: "I just love giving my boyfriend Gusher Crusher's, Watermelon blast is my favourite!"

Gusher Crusher by FuelWaster January 6, 2019

Gusset typist 

Female form of masturbation...think about it.

The only way she could reach orgasm was to be a Gusset typist.

Gusset typist by Babsy4220 June 23, 2009

Gusset Tuffet

A small, round ball of feces resident in the gusset of one's underwear. Unlike a traditional butt nugget, the Gusset Tuffet works itself free from the recess of one's ass crack but goes unnoticed until the undergarment is removed. Gusset Tuffets are long suspected of being the primary source of skid marks.

Roger took a nasty dump at the office. He thought he wiped clean but realized later he had been walking around with gusset Tuffets all day.

Gusset Tuffet by Eaton Holgoode May 5, 2015

filthy gusset 

A very rotting stenching pussy

It was horrible, I've shed a stone since I took her knickers off and saw her filthy gusset, it was every kind of rank possible, i got a S.T.I just looking at it

filthy gusset by mitch00uk March 29, 2015