When you are hitting it from behind and have your thumb in her butt at the same time. Thumb-butting it.
by Blibicer November 26, 2017
Dave is constantly flooding pics of his crappy car on the Facebook group page. He needs the Likes. He's such a Thumb Junky.
by Bob Sweat February 20, 2018
by ChickenChoker9000 May 8, 2018
A practical joke picture message posing a penis in place of a thumb during a photograph explaining a thumb injury that has resulted in a seriously swollen thumb.
by moongorilla March 18, 2018
by PrincessLeia April 14, 2017
by Hank the Yank June 30, 2016
Classmate: "Has anyone talked to her about the break up?"
Me: "Na. She's been thumb fucking her phone all day and won't talk to anyone."
Me: "Na. She's been thumb fucking her phone all day and won't talk to anyone."
by MaddHatter June 27, 2016