Tending to "shoot off at the mouth"; opinionated, ready with a defiant verbal response. See fresh, definition #3.
I swear, that's the mouthiest kid I've ever seen - he talks back to everybody!
by house9 October 3, 2004
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Oral sex performed on a male
Tyson gave me the greatest mouthy ever while I drove him to work
by Ryan M. Wilson November 18, 2007
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A derogatory term towards an individual or a group of individuals refusing to wear a mask for illegitimate reasons during a pandemic. Pairs nicely with 'dumbass' or 'fucking'
"I saw a Karen not wearing a mask at a restaurant the other night. What a dumbass mouthie..."

"Maybe the US could be recovering like other countries, if it weren't for all these mouthies."
by lotuseyes September 11, 2020
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The range of sexual actions that does not involve actual sex or coitus but does include both manual and oral acts. a succinct way of saying 'everything but sex' that leaves less ambiguity as to what actually happened.
"Did you get the full ten points and have sex with that girl last night?"
"Not quite, but we did do handsy mouthies, so just eight for me"
by KC34 May 9, 2016
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Vincent, you need to shut up that mouthy slut girlfriend of yours before i stick my dick in her mouth and shut her up for you!
by vincentandbianca December 30, 2011
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Typically a fan of either spurz,chels or man yoo.

Urghhhhh look at that mouthy cunt, let's go and stamp on his dirty yiddo head!
by Fatneck August 4, 2007
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A particularly loud, obnoxious, or opinionated woman who freely shares her (often under-informed) opinions.
Lindsay keeps trying to tell me that she knows more about sports than I do, what a mouthy broad.
by Rash4 February 8, 2011
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