Placing your flaccid penis into a woman's mouth and bending it in a 'U' shape like a mouth-guard.
Beth would not shut the hell up last night so I gave her a mouthguard.
by Seekerjk September 14, 2007
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A phrase used to describe someone/something that is so gay that normal words dont suffice. The implication is that the person/scenario/object is comparable to being viciously rammed up the down pipe, a situation in which a mouthguard is preferable.
"That pink shirt is really mouthguard dude."
"get your stupid mouthguard dog off me, its trying to roger my drainpipes."
by Cycrowavemurry January 24, 2008
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An unique state of rage charcterized by the need to insert a mouth guard in order to protect oneself from biting through one's lower jaw.
Vos got mouthguard angry again last night when his room flooded.
by Saucemous Maximus April 29, 2009
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The world's first flavored mouthguard. Patented technology enables MoGo to embed the flavor right into the plastic resin – effectively the flavor and plastic polymers become one. As long as the plastic retains its integrity, the flavor lasts after repeated use.
Last night I wore my MoGo Mouthguard for the first time at football practice and the flavor was unbelievable!
by MoGo Sport August 12, 2011
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When playing the game MOUTHGUARD, wait for the right moment to quickly insert your erect Penis into another player's mouth. Method works best when the player doesn't expect you and while they are laughing.
by C@mer0n_Br0wn February 12, 2018
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The lisp you get when you talk while wearing a mouthguard
Person 1: You got your mouthguard for ufc?
Person 2: Yeth, I have my mouthguard for uf -thea. And I covered it in Vatheline.
Person 1: please take out your mouthguard.
Person 2: (takes out mouthguard) Sorry, mouthguard lisp.
by babypiratesnapchat2 October 29, 2022
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when someone is asleep you put your nuts on there teeth
dude dean passed out at the party so we all gave him an irish mouthguard
by constapedpooblocker February 5, 2010
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