Mouth breather Meaning in English
expression
Definition
A 'mouth breather' is someone who breathes through their mouth instead of their nose. Informally and insultingly, it can mean a person who seems unintelligent or slow-thinking.
Usage & Nuances
Mildly insulting slang when referring to a person ('He's such a mouth breather'). In medical contexts, used literally. Not appropriate in formal writing. Common in internet and youth slang.
Example Sentences
The doctor said being a mouth breather can cause dental problems.
basic
Some children are mouth breathers while they sleep.
basic
She used to be a mouth breather, but now she breathes through her nose.
basic
Don't be such a mouth breather—think before you speak!
natural
Online trolls love calling people mouth breathers to make fun of them.
natural
I used to get teased at school for being a mouth breather because of my allergies.
natural