The act of wearing a bib while pissing into your own mouth, in mouth situations not swallowing it until your mouth is full or you run out of piss.
"Why are you wearing a bib and pissing into your mouth?"
"Dude it's the Cincinnati Oyster Bib!"
"That doesn't explain the piss."
"Yes it does."
"Dude it's the Cincinnati Oyster Bib!"
"That doesn't explain the piss."
"Yes it does."
by Been-gals April 14, 2010