Something that horny Germans say while making jerk-off motions with their hands.
Marian said "open your mouth"
by jizzer March 12, 2005
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When you and/or someone else excessively insult or talk bad about someone something, even when directed to stop. usually, the bully keeps this up to the point where the person directed to the verbal assault becomes angry, irritated, or distressed. See talking smack, talking shit talking bad, verbal bullying, back talk
"Dude, stop running your mouth, your only going to piss them off even more!'
by Suburbanz71 November 8, 2017
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Speaking without authority or unclearly.

Usually used amongst friends, can be a merciful out for a person who starts talking and realizes halfway through their speech that they haven't a clue what the point they were trying to make was.
Your stoned friend who keeps endlessly blabbing on and on about the blue dophins of conciousness holding his eyelids open with a toothpick could be quickly shut up by being told "Dude - your mouth is open!"

by jjthemick May 11, 2006
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Lying about giving/receiving oral sex to/from someone, which includes sucking dick, eating pussy, licking ass, etc.
WOMAN: You know that girl said you ate her out. But, I knew she's lying on your mouth because you was home the whole time.

MAN: When you see that chick again, have her come to my office. She's gonna answer to me for that.
by Mr. Terrence L. Trezvant January 26, 2007
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ehh blud your giving me a headache hold yur mouf
by Fatoma February 8, 2005
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A term that most commonly means "shut the fuck up or I'll shove my balls in your mouth", or "get the balls out of your mouth".
Doug: HEY EGG, BALLS IN YOUR MOUTH!
Egg: DOUG IM GUNA FUCKIN KILL YOU *throws tripod at doug*
by Doug Lorenzen November 10, 2005
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