Gravy Blaster 

Gravy Blaster is most commonly used to refer to one's asshole, anus, rectum, sphincter, brown round, brown eye, red eye, juicy brown, turd cutter, poop chute, mud room, cable dropper.

Howard suffered the most horrific cast of the squirts that he had ever encountered after eating what turned out to be tainted fish. After three hours back and forth on the toilet, his Gravy Blaster was sore to the touch and he had to apply some Tucks Medicated Pads.

Gravy Blaster by Eaton Holgoode April 26, 2014

Gravy Blister 

Gravy Blister. Someone that only does the easy jobs at work, and are like a blister... only shows up after work is done.

"Austin is a gravy blister, where is he at we are almost done!"

Gravy Blister by SupermarineLR September 10, 2011