mouthguard 

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.

mouthguard by Seekerjk September 27, 2007

Mouthguard 

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."

Mouthguard by Cycrowavemurry January 24, 2008

Mouthguard Angry 

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.

Mouthguard Angry by Saucemous Maximus April 29, 2009

mouthguard lisp 

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.

mouthguard lisp by babypiratesnapchat2 October 29, 2022

MoGo Mouthguard 

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!

MoGo Mouthguard by MoGo Sport August 16, 2011

Surprise Mouthguard 

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.

hey cameron wanna play surprise mouthguard?

Surprise Mouthguard by C@mer0n_Br0wn February 12, 2018

irish mouthguard 

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

irish mouthguard by constapedpooblocker February 4, 2010