mouth-breather

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mouth breather

Someone who is dimwitted, foolish, or stupid; someone of low or stunted intelligence. Used as an insult. That bully is a such a mouth breather, I bet he has the IQ of a rock.
See also: breather, mouth
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

mouth-breather

n. a stupid-acting person. I always end up with a mouth-breather on a blind date.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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References in periodicals archive ?
You're a mouth breather and your saliva, which is like glue when it dries out during the night, sticks your tongue to your hard palate.
Why is my tongue sore?
The mouth-breathing test: If you can only make a snoring noise with your mouth open then you're a mouth breather. Try chin-up straps to keep your mouth closed.
SEX DOCTOR: ISSUE OF THE WEEK.. END THAT SNORING
Clinical examination revealed that the patient was a mouth breather with hyponasal speech.
Report of an unusual cause of rhinolithiasis: an 'opioma'
He was a mouth breather with moderately severe retrognathia.
Airway management of the severely retrognathic child: use of the laryngeal mask airway. (Original Article)
You're a mouth breather, and all breathing through your mouth all night dries up your tongue, your cheeks and the lining of your mouth.
Why is my mouth dry all the time?
You're a mouth breather and the repeated intake of air is drying out your saliva.
Why is my mouth so dry all the time?
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