mouth sweat 

n. Excessive drooling, usually induced by delightful cooking aromas, physiological excitation, or Pavlovian chimes. Sometimes a precursor to forceful vomiting.

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I can feel the mouth sweat coming! Somebody fetch me a bucket!

mouth sweat by gnostic3 May 11, 2018

Mouth-breather 

1. Someone who can’t breathe through their nose.
2 A stupid or ignorant person
3. Someone who refuses to wear a mask for political reasons.

4. All of the above (most common)

That Trump-lovin’ gun-totin’ fool is one heckuva mouth-breather.

Mouth-breather by The Smose August 9, 2020

mouth breather 

A sun smilin' mouth-breather.

One who can't look towards the sun without squinting, showing their upper teeth and dropping their mouth open.
Usually wears a Cleveland Browns shirt.

"Hey look at that sun smilin' mouth breather, I sure hope a cloud blocks out that sun before he drools all over himself."

mouth breather by F.R. January 7, 2005

mouth roof licking virginity 

The act of licking or having felt the roof of a mouth that does not belong to you for the first time. If you have made out before this does not necessarily mean that you are not a mouth roof licking virgin, because the roof of the mouth is not generally the designated target for the tongue.

Yesterday Alex lost his Mouth Roof Licking Virginity to Chelsea.

mouth roof licking virginity by Peace Gob February 28, 2009

mouth bidet 

A water fountain or bubbler.

I'm thirsty. Where is the nearest mouth bidet?

mouth bidet by Timmay H September 20, 2005

mouth-breather 

Complete dumbass that finds it difficult to even breathe.

Matt Kulow

mouth-breather by fartknocker4 August 11, 2003

Mouth Breather 

Someone who's been in too many fistfights and thus has had the ability to breathe through the nose beaten out of him. The usual implication is that the ability to use the brain has also been beaten out of him.

My bookie sent a mouth breather to collect for him, but when the goon tried to get me to head to the ATM with him I escaped for the moment by saying his shoe was untied.

Mouth Breather by Rockford Files May 13, 2005