Mooper mouth

One with abnormally large lips and eats a whole lot

Look at him! He has a huge Mooper mouth

Mouth boner

Wanting to eat something really badly

Ahh man those corndogs look so good I just got a mouth boner

Mouth Bar

When someone makes you feel so good on the inside, you’d drink from thier mouth.

You make me feel so good, I want to get drunk from your mouth bar.

My hot mouth is boutta explode

When someone absolutely explodes your mouth.

YOOOO, MY HOT MOUTH IS BOUTTA EXPLODEEEEE. IT'S BECAUSE OF GVIDAS

Parrot mouth

Somebody that either says everything you just said, or at times even tries to say something you thought of before you could say it with the help of a psychic friend, all to gain credit for doing so.

The parrot mouth wanted to claim the other person's ideas as his/her own, and found that the best way to keep the other person ostracized (or from finding any sort of rhythm) was to just mindlessly blurt out everything the other person just said back them and anybody else present (Baaa I'm not ignorant you're ignorant, Baaa I'm not the pee pee head you're the pee pee head). That way the parrot mouth won either way by remaining relevant via credit or attention from others.

toast mouth

When a girl won't suck you because she has a sore throat!

I can't go down on you, I have toast mouth!

You've said a mouthful.

You are sucking up with so many complements that it's like you have your mouth full male orgasmic excretion.

After plying lots of unfounded compliments to someone, the person responds by saying, "You've said a mouthful."