A used towel, discovered when an unsuspecting wet person reaches for it and dries his face in what feels and smells like ass.
I took two showers today, I got burned on an ass towel.
by gunshow February 11, 2005
A cloth fabric that is placed on a chair or sofa where you can sit naked. This could be a dish towel, a towel or even a rag. It is for avoiding contact with genitals and the surface sitting area of a chair or any place to sit.
Honey, can you bring me an asstowel to use on the chair ? I am to lazy to get dressed.
by metalguy August 14, 2014