butt relish 

highly insulting reference to a variety of types of leavings from inefficient post-defecatory rectal clean-up

derivatives include:
butt salsa
butt ketchup
butt dip
butt buffet

you get the picture....

"You kiss my boyfriend again, beyotch, and I'll slap you down and make you eat my butt relish!"

butt relish by David July 11, 2003

Butt relish 

Butt relish is. Shit sperm and lube mixed

Last night. I looked on the bed and there was butt relish

Butt relish by Bills rv service August 7, 2019