flat mouths 

Cheap sneakers possibly bought at K-Mart or Kash-n-Karry. The have flat soles, no cushion, and make a slapping sound when you run.

Look at kingfresh wearing his flat mouths! What an anathema!

flat mouths by f3drock May 29, 2007

fatmouth 

Used to describe someone who cannot shut up, talks with verbal diahorrea or who swears a lot- almost used in that case interchangeably with 'foulmouth'.

She's such an anonying little fatmouth.

Shut up you fatmouth little bitch!

fatmouth by whitecracker556 March 9, 2009

fatmouth 

A famous serial rapist, that emerged in the 21st century.

"oops i dropped my wallet"
*enter fatmouth*

fatmouth by Gritto October 9, 2003

Dingo Flatmouth 

An inaudible saying that nobody understands. It is used in place of common words such as book.

Teacher: "Today in class we will be reading the book Hamlet."
Student: "I aint funna read dat dingo flatmouth."

Dingo Flatmouth by Jonashquaka December 8, 2010

fatmouth 

Used to describe someone with a hearty appetite. Can be used as a noun or a verb.

Glen is such a fatmouth, I can't believe he ate that whole party size bag of Doritos in one sitting.

Man, I'm so hungry I could fatmouth a Fuddruckers 1/2lb burger right now.

fatmouth by Goo L January 8, 2021