Shart burn
noun
1.
an uneasy burning sensation in the ring piece, typically extending toward the surrounding anus. Usually, but not exclusively, caused by the continued wiping necessitated by the eructation of fluid faeces.
I think one of the 15 pints I had last night must have come in a dirty glass. I've been pissing out of my arse all day and have terrible shart burn. I've had to get the wife to smear my ring with germoline.
a rare and tragic combination of gastrointestinal malfunctions resulting in an embarrasing release of gasseos effluvia and inadvertantly, solid shite (a shart), which, due to the recent consumption of spicy food, simultaneously leads to a distressingly painful case of hotring. A lethal and humiliating combination.
"Dude, gotta go, I just sharted.... Holy fuck, it's shartburn!!!"