The Online Slang Dictionary
(American, English, and Urban slang)

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Browsing page 79 of words meaning insults (list of) (1,254 words total)

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The list of all slang words with this meaning is shown on page 1 of this category.

Full definitions of all the slang words listed above:

M

mouth breather

noun

  • 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.

    Last edited on May 16 2011. Submitted by Ginny R. from Mesa, AZ, USA on Oct 12 2002.

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mud duck

noun

  • an unattractive person.

    Last edited on May 04 2010. Submitted by Cheree B. from Alliance, OH, USA on Feb 10 2003.

  • a person with a weak signal on Citizens Band radio.

    Last edited on May 04 2010. Submitted by Anonymous on Apr 06 2010.

  • Item used to scrape the mud from the bottom of your boots or shoes.

    Last edited on Jan 16 2012. Submitted by Anonymous on Jan 16 2012.

  • a fictitious creature upon which one blames his audible flatulence.
    That wasn't me, it must have been a mud duck.

    Last edited on Feb 15 2014. Submitted by Anonymous on Feb 15 2014.

  • The worst Fantasy Sports participant of all time.
    That Mud Duck is the worst at fantasy football!

    Last edited on Mar 15 2016. Submitted by Anonymous on Mar 15 2016.

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mudpout

  • An Ugly Broad. "Catfish" is also acceptable, but not as cool.
    Man she's a mudpout.

    Last edited on Feb 24 2002. Submitted by Matt from Ottawa, ON, Canada on Feb 24 2002.

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mugly

  • very unattractive. Etymology: "Your mug shot is ugly."
    That girl was straight mugly!

    Last edited on Aug 29 2013. Submitted by Jessie from Oakland, CA, USA on Dec 19 2001.

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mule head

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munchkin

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mushroom

  • a stupid person or someone that you don't know and don't like. You're telling that person that they have a low I.Q. Russainlish word for the slang term Mushroom is "me'cozi."
    God, you are such a mushroom!

    Last edited on May 16 2011. Submitted by Jacob P. from Milwaukee, WI 53219, USA on Mar 12 2003.

  • to treat someone like a mushroom: to keep him in the dark and feed him manure.

    Last edited on Oct 02 2005. Submitted by william l. from Tennessee, USA on Oct 02 2005.

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