Little Bitch Mouth 

Someone who can't handle spicy or hot foods.

Jason couldn't finish his spicy chicken sandwich because of his little bitch mouth.

Little Bitch Mouth by CrazyAssAmerican September 2, 2016

Diarrhea of the Mouth 

A person, who usually isn't very intelligent, who will not shut up. It's typically a cover for their own inferiority.

Damn, shut the hell up dude. You sound like Dabo Swinney with all that diarrhea of the mouth!

Diarrhea of the Mouth by C-dog73 December 18, 2012

Keep my wife’s name out your fucking mouth! 

- Will Smith, 2022 Oscars

Chris Rock: Jada, I love ya, G.I. Jane 2, can’t wait to see it.
Will Smith: Walks to Chris
Chris: Uh-oh, King Richard-
(Gets slapped)
Chris: Oh wow! Will Smith just smacked the shit outta me!
Will: Keep my wife’s name out your fucking mouth!
Chris: It was a G.I. Jane joke-
Will: Keep my wife’s name out your fucking mouth!!

Keep my wife’s name out your fucking mouth! by NougatNewt March 28, 2022

You breed with the mouth of a goat 

You talk dirty when you have sex.

Originates from the idea of goats whispering lewd things in young women and old men's ears.

Castiel: You breed with the mouth of a goat!
One of the Winchesters: Wut?
Castiel: It's funnier in Enochian.

You breed with the mouth of a goat by Drokhan May 8, 2014

poor-mouth 

The act of playing up the your level of poverty verbally to excuse yourself or make yourself look worse off than you are. A person who does this is known as a poor-mouth or the act itself is called poor-mouths or poor-mouthing.

He poor-mouths that he couldn't pay the bill, when he just bought a brand new lexus.

poor-mouth by WLN May 29, 2008

Cock Mouth

When an individual has their mouth in the shape that a cock could perfectly fit in there.

Man, I was checking her pictures out on facebook. She definitely has got a cock mouth.

Cock Mouth by PhoneEatingBear December 14, 2010

pirate mouth

The unfavourable purple mouth you get from drinking too much red wine.

"I could tell Corene got into the red wine last night because she had mad pirate mouth."

pirate mouth by adriennediana December 16, 2016