Thumb-butting

When you are hitting it from behind and have your thumb in her butt at the same time. Thumb-butting it.

She seemed like she wanted it so to test the waters I was thumb-butting it.

by Blibicer November 26, 2017

thumb-holing

Sucking up. Kissing ass. Figurative anal pleasuring

Kyle is always thumb-holing the boss like it's going to get him a raise!

by Petegny March 24, 2020