Ass Tar

A combination of thick shit and sweat compounded into one's butt crack.

John held his poop in all day, therefore creating Ass Tar.

by Kekfjjtkf January 5, 2017

Ass tar

The sticky, unyielding, slow moving, and clingy eradication of Thanksgiving dinner, usually encountered the following day.

Man I ate so much turkey, stuffing, and gravy that I had some nasty ass tar the next day.

by scythe74 November 23, 2018