In the context of an online dating profile this means a guy with a thumb sized penis that masturbates constantly
by Lzeb October 2, 2019

When you have your thumb facing up on the couch trying to hit a bullseye on your wife's backdoor as she sits down and misses the hole and jams it bad.
by The bad santa (dirty eggrole) September 12, 2022

The act of drumming on a desk or whatever your hands are over with the edges of your thumbs while your palm faces down.
John: wow whats with the blisters on your thumbs?
Mike: had an epically intense thumb drumming session yesterday...
Mike: had an epically intense thumb drumming session yesterday...
by iamalion1467 December 7, 2009

by Thumb hug December 21, 2017

by Off with her head! September 7, 2016

A sex sexual act in which, while taking a woman in the curly Q position you slip a thumb into the back door
by Kentuckyboy1776 May 20, 2021

by Ok4848482905 May 8, 2022
