Derogatory. Special species of fanboy dork who breathes through his mouth. When not collecting funny books, watching cartoons, playing dungeons and dragons, or video games, he is stalking goth girls or getting beat up.
The pimply faced mouthbreather with coke bottle glasses crept into the comic bookstore. He watched the goth girl for 5 minutes before he walked up and said to her, "Gee, (weez, weez, weez) you remind me of Electra from the X-Men funny books...(weez, weez, pant)
by Jerry Bathers January 21, 2006
A person who breathes loudly through their mouth with a nasally voice. Generally seen playing Dungeons and Dragons in the school library and looking at pictures of naked anime women in the computer labs.
Studies indicate that mouth breathers also have loud obnoxious laughter.
Studies indicate that mouth breathers also have loud obnoxious laughter.
The ugly guy with the long red hair who is taking an arts degree but likes to pretend he's in Computer Science.
by Ace October 13, 2004
a person who lays in bed next to you asking 1,000,000s of questions and even when they are not talking you still get to breathe in their out cause they are breathing through their mouths
blah blah blah blah blah. *uuuuuu huuuuuuuu uuuuuuu huuuuuuu uuuuuuuuu huuuuuuuuu uuuuuuuuuu huuuuuuuuuu*blah blah blah blah blah. *uuuuuu huuuuuuuu uuuuuuu huuuuuuu uuuuuuuuu huuuuuuuuu uuuuuuuuuu huuuuuuuuuu*blah blah blah blah blah. *uuuuuu huuuuuuuu uuuuuuu huuuuuuu uuuuuuuuu huuuuuuuuu uuuuuuuuuu huuuuuuuuuu* Mouthbreathers suck.
by Noteric Thedead March 23, 2008
Remi is truly a Dutch Mouthbreather sommelier - he picked up hints of white truffle and corn from my fart.
by Buford C Cabhash April 22, 2022
anyone who supports unregulated capitalism
by DrPattyB September 16, 2020
a person who struggles/has difficulty breathing through their nose due to allergies or other illnesses or symptoms related
by BrotherKnowsBest September 26, 2019
A female photo model (or just every female model who also does photo modelling jobs from time to time). Since they all have slightly opened mouths on photos.
A (browsing through lingerie catalogue): Look at these sexy models! Can you imagine? If I were a photographer, I could pick 'em all up!
B: Really? You like those mouthbreathers?
B: Really? You like those mouthbreathers?
by SassuWunnuOn July 25, 2023