mouth mixer 

A potent alcoholic beverage served by directly pouring seperate components into the recipient's open mouth, thereby eliminating the need for glassware and ensuring immediate intoxication. A popular combination is Baccardi 151 Rum and Coke. A spew rag should always be kept nearby.

Dude, we did so many mouth mixers at Dave's last night, I blew chunks for two days.

mouth mixer by ted December 8, 2004

miners mouth 

where you eat out a butthole and come out with poop all over you teeth making them appear black, like coal.

"dude yesterday i was eatin out my girls ass and i hella got miners mouth".

miners mouth by k hump April 6, 2008