Shut Your Damn Mouth 

A teacher always say this phrase when teaching Science.
The phrase first appeared in the Lab in La Salle College

Teacher:So if we mix solution A with citric acid,and... DON’T TALK
Students:AHHHH...
Teacher: Shut Your Damn Mouth!
Student: Shut up!You’re as 87 as Chan Tong and 8745

Shut Your Damn Mouth by where'smymicrophone December 8, 2019

Unsolicited peepee in mouth

When someone puts their peepee in yourmouth without permission. After they do that you should definitely break up with them but some dumb people don’t do it.

He put an unsolicited peepee in mouth and that’s not ok

Unsolicited peepee in mouth by Tablecloth January 2, 2020

wires in my mouth 

Wires in my mouth means, He/She has braces and cannot perform a sexual act

I can’t suck your di€k, I have wires in my mouth

wires in my mouth by Wires in my mouth April 24, 2020

chewing gum with your mouth open 

annoying af

Gary: stop chewing gum with your mouth open, are you insane?!
David: what's the big deal? it doesn't hurt anyone.
Gary: its annoying af!

chewing gum with your mouth open by Video2Video June 18, 2020

Communion in your mouth

Busting a load in someone’s mouth.

Hey holly.. I’m gonna make my communion in your mouth later!

Communion in your mouth by PeteyPaplo August 15, 2020

Sleight-of-mouth 

The art of oral distraction, the verbal skills needed to "Alter-nate" truth into pure fiction. aka "The Con-way" or "Conwayfying", aka "the long gone con", aka "the blonde-con"

Kellyanne truly masters the time honoured sleight-of-mouth necessary to magically mould fact into fiction, and shall inherit the earth, because thou shalt have no falsettos before her.

Sleight-of-mouth by You rReal Name August 16, 2020

Turn your mouth into a daycare centre 

When a girl is sucking dick and he cums in her mouth

Boy “I’m going to turn your mouth into a daycare centre”

Turn your mouth into a daycare centre by Mazinator69 September 10, 2020