He was always known as a mouth breather in school.
mouth breather
Frequency:
60
%
The doctor suggested using a mouth breather device at night.
mouth breather
Frequency:
50
%
She could hear him struggle to breathe as he slept, confirming he was a mouth breather.
Idiomatic Expressions for mouth breather
Phrase: Stop being a mouth breather
Meaning: Used to criticize someone for being slow or dim-witted.
Usage: This phrase is often used in a joking or teasing manner among friends or colleagues.