During oral sex, an ejaculation into a woman's mouth that's so powerful that it leaks out from the sides. Similar to Mount Saint Helens.
This chick was sucking me off last night, and I totally pulled a Mouth Saint Helens on her. I think some of it even came out her nose.
by jcharlesholt April 15, 2005
Get the Mouth Saint Helens mug.Oral pleasure performed with one person's mouth on another's genitalia; umbrella term for 'fellatio', 'anilingus', 'cunniligus', and 'dirty ball sucking'
Guy: Can we do some mouth stuff later?
Girl: What, are you in junior high?
Guy: So that's a yes, or, what, what is that? A yes?
Girl: What, are you in junior high?
Guy: So that's a yes, or, what, what is that? A yes?
by J_akespeare July 16, 2011
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mouth-breather
• Mouth hug
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by Foxhill January 12, 2005
Get the mouth butcher mug.by tim johnstone May 9, 2008
Get the mouth men mug.by That old guy March 5, 2009
Get the Mouth Chuck mug.An individual who talks smack or verbally picks fights that typically result in having arguments and/or disputes with others.
John is a nice guy most of the time - but when he gets a few drink in him - he's got a mouth for war.
by JJSESQ April 2, 2009
Get the Mouth For War mug.Determining the size of a man's penis based upon how much of your mouth it takes up while giving a blowjob.
I've mouth measured him before, but I don't remember his penis being that big.
I'm quite pleased with the results of my mouth measure.
I'm quite pleased with the results of my mouth measure.
by Amillionaire September 14, 2010
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