Poop in a Nigga Mouth 

Knock him out and shit in his mouth

Ayy poop in a nigga mouth right there

Poop in a Nigga Mouth by Poop in a Nigga Mouth Master February 24, 2019

Poopmouth 

Poopmouth is a person who has incredibly bad breath, as if they had eaten fecal matter. It may smell as if they had eaten a poop sandwich.

Brush your teeth, poopmouth!

Poopmouth by trinketsntreats April 24, 2009

Poopmouth 

referring to a girl/guy who has licked a butthole, tossed a salad, played the rusty trombone, etc.

dont kiss that girl shes a poopmouth

Poopmouth by license to chill February 9, 2006

Poopmouth 

1. Refers to anyone who displeases me in a manner which doesn't deserve harsher treatment. See example 1

2. Term of endearment to people close to you. See example 2

Example 1
Person 1= Can you please hand me that pen?
Person 2= Get it your self.
Person 1= FINE! POOPMOUTH!

Example 2

Friend 1= Hey what are you doing poopmouth?
Friend 2= Not a whole lot of anything.
Friend 1= Nice nice...

Poopmouth by AngelousBelleMorte June 6, 2009