by Buxrmf January 22, 2021

Someone who breathed through their mouth instead of nose when they were younger, cussing their bones to mutate and making heir jaw and face look stupid and unattractive.
by Mayo Naze September 13, 2018

someone who snores extremely loud to the point you have to listen to lofi to drown out thr excruciating noises coming from that persons mouth
by psada March 18, 2022

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
