fistable

A person who is so loose a fist can be inserted.

She's a fistable slut.

by Reggie Pumpernickel October 10, 2016

Fistability

A measure of the likely hood or other of being analy penetrated by someone’s fist, of being fisted.

Look at that horny dilf at the bar, he scores high on the fistability index.

by Clapham-junction July 17, 2018