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Definition of a mouth breather

mouth breather


  • implies someone who is (sometimes) not too bright, unkempt, nerdy.
    He is such a mouth-breather.

    Last edited on May 12 2013. Submitted by JoAnn from Denver, CO, USA on May 21 1999.

  • Someone who breathes through the mouth. Basically the same meaning as "slack-jaw;" a stupid person who advertises that stupidity by letting his mouth hang open.
    A typical mouth-breather came into the store yesterday.

    Last edited on May 16 2011. Submitted by cameron from New York, NY, USA on Oct 21 1999.

  • used in a derogatory sense, it means slack jawed, stupid, ignorant, unwashed masses, goofy, unprofessional, dumb, uneducated.
    That jerk was a mouth breather.


    Citation from "Chapter Seven: The Lost Sister", Stranger Things, Season 2 Episode 7 censored in hope of resolving Google's penalty against this site.

    Last edited on Jul 08 2018. Submitted by Ginny R. from Mesa, AZ, USA on Oct 12 2002.

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Slang terms with the same meaning

Other terms relating to 'unintelligent person, idiot':

Definitions include: A fool or idiot.
Definitions include: a stupid or absent-minded person.
Definitions include: alternate spelling and pronunciation of "idiot".
Definitions include: any unintelligent person.
Definitions include: an unintelligent person; "moron"; "dimwit"; "idiot".
Definitions include: a manipulative female.
Definitions include: an unkind person; "jerk"; "asshole".
Definitions include: a person who does something very stupid.
Definitions include: idiot.
Definitions include: very good, excellent; "cool".
Definitions include: a silly person; "moron"; idiot.
Definitions include: an unintelligent female.
Definitions include: a moron; "goof".
Definitions include: very cold.
Definitions include: an unintelligent male.

Slang terms with the same root words

Other terms relating to 'breathe':

Definitions include: the space/gap between certain women's most upper and inner thigh just below her crotch.

Other terms relating to 'mouth':

Definitions include: sex in which anal sex is immediately followed by fellatio.
Definitions include: to say bad things about another person.
Definitions include: a person having a "big mouth" reveals information that they shouldn't.
Definitions include: a person who talks too much.
Definitions include: to be born into wealth and privilege.
Definitions include: dry mouth.
Definitions include: a metaphorical condition which causes one to talk excessively.
Definitions include: to be extremely angry.
Definitions include: to frequently put (one's) foot in (one's) mouth - i.e. say inappropriate things.
Definitions include: to reveal information that one shouldn't.
Definitions include: to swear frequently.
Definitions include: to talk continuously.
Definitions include: to judge a gift harshly.
Definitions include: a person who talks excessively.
Definitions include: to be insolent.

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