Open Mouth Breather

Open Mouth Breather - An individual that breathes through their mouth when not exerted. The individual appears to be, and ususally is, perpetually confused, not very bright, an idiot.

You see someone from Wisconsin driving along. As you pass them you see their profile and their mouth is wide open, an Open Mouth Breather. Although they are looking straight ahead, they don't see traffic stopping and slam their brakes on at the last moment. This is an example of an OMB (Open Mouth Breather)

by Nicholas Esayian November 2, 2007

Open-Mouth Breather

Someone who keeps their mouth open, often with tongue sticking out; appearing mentally deficient. Implying the person has brain damage or is mentally deficient.

All his friends were idiots and morons; the biggest collection of open-mouth breathers I've ever seen.

by Timbotron3000 May 30, 2006

Open-Mouthed Breather

Someone who keeps their mouth open, often with tongue sticking out; appearing mentally deficient. Implying the person has brain damage or is mentally deficient.

All his friends were idiots and morons; the biggest collection of open-mouthed breathers I've ever seen.

by Timbotron3000 May 30, 2006

Mouth Breather

An extremely stupid person, often referring to a person with Down syndrome (a retarded person)

1. That kid Ross has Down syndrome, he is a total mouth breather
2. Do you breath of of that mouth bud?!?!

by Donstar3 May 31, 2017

Floor Squeakin' Mouth Breather

Phrase meaning a large woman or man that is out of breath after only a few steps. Not attractive in the least this person resembles "Jabba the Hut" with legs.

Get a load of that Floor Squeakin' mouth breather going into Old Country Buffett, you can't wash all the parts of that gal.

If that Floor squeakin' mouth breather had a red shirt on he would look like an ugly Kool-Aid. O yea!!!

by Buck Awesome August 27, 2009

Mouth breather

A person who dosent understand; stupid; dumb; etc

"That person is a mouth breather."
"Ugh, you're such a mouth breather."

by DEMOGORGAN October 1, 2018

Propane Breather

You have a fat chick eat a ton of spicy food, and when she farts she does it through a connected funnel that goes to your mouth.
You inhale it all, nuff said.

Gianna: I cant believe he let me do that to him!

Riah: Dont tell me he’s into feet or something…

Gianna: No, he’s got a fart fetish, so I turned him into my personal Propane Breather.

by T.H.E. J July 23, 2025