Chef's Mouth 

A term for someone who often swears profusely, uses vain or foul terminology, and inserts the "fuck" word into his syntax as often as possible. This results due to his/her immersion in a professional kitchen environment. Similar to "swearing like a sailor", "truckers mouth", "swear like a trucker", etc...
What the fuck Chuck? Hustle your sweet fuckin tits with that filet or I'll be on your lush ass like a priest on a fucking altar boy! Fucking MOVE asshole!

Jane never swore until she became a line cook. Now, after 2 years in the kitchen, she often calls her best friend a slack jawed fuck bag. Jane knows she has a classic case of "Chef's Mouth".

Chef's Mouth by inthekitchenbitchin August 6, 2010

Hooker’s Mouth 

When you wake up in the morning and your mouth tastes and smells like you’ve been sucking sweaty cock and balls all night long. May or may not actually be from sucking cock and balls all night.

Dude go brush your teeth. You got hooker’s mouth.

I went to kiss Rachel this morning. She sucked my knob all night last night so she had the hooker’s mouth.

My breath smells like hooker’s mouth. I need some Scope.

Hooker’s Mouth by Eaton Holgoode May 13, 2018

Wiping the Turtle's mouth 

When you are trying to poo (shit) but the faeces gets lodged in the opening to the anal cavity, often known as a turtle's head poking out. When you can push no more, but the turtle remains trapped, wiping during this scenario is known as Wiping the Turtle's mouth.

Craig came back from the dunger and informed Jon "That was a tough one Jon, I just ended up wiping the turtle's mouth" Jon understood instantly.

Wiping the Turtle's mouth by Broaders September 6, 2019

(straight) from the horse's mouth

from the most official source(from the fact that a horse's age can be determined most precisely and directly by examining it's teeth)

He gets his stories straight from the horse's mouth.

(straight) from the horse's mouth by Light Joker July 23, 2005

plater's mouth 

the perfect mouth for a really decent blow job, usually voluptuous lips

" what lovely lips, a plater's mouth if ever I saw one"

plater's mouth by ninesheets November 9, 2009

Ant's-mouth 

a very small quantity of.....

YOU COULDN'T FILL AN ANT'S-MOUTH WITH THAT!

Ant's-mouth by robdog555555 July 6, 2011

shit in ur mom's mouth for 50p 

the act of excreting bodily waste into somebody's mother's mouth for the amount of 50p or half a pound, or even half a dollar if u are american.

person 1: dude, ur mom is dead!
person 2: oh yeah? well i shit in ur mom's mouth, for 50p. Half a pound! or 'dollar' if u are american
person 1 and 2: hahahahhahahahhaha

shit in ur mom's mouth for 50p by chris cringle September 6, 2004