thumb bump

Similar to a fist bump, but more intimate, given the smaller surface area. First observed among parents and their kids.

MADDY: Dad, I got 100 on my Social Studies test!

DAD: Way to go! Thumb bump

by jimp31 March 29, 2014

Thumb Bumm

When you put your thumb in someone’s ass while walking by... Like a Wet Willy but with your thumb in their butthole.

Yo.. I just did a Thumb Bumm drive by to this rando girl at the bar.

by BEANERSCHNITZEL June 6, 2018

Thumb Bump

1/11/17 Originated by Dan Cicu from Seattle, WA. Thumb Bump is similar to the "fist bump", with a clenched vertical fist instead, displaying the "thumbs up" in approval. 👍

Alright bro, good hanging, I gotta go.. *thumb bump*

by Dan Cicu January 11, 2017

Thumb-Bummin

When one is bored and lonely so one masturbates with a thumb wedged knuckle-deep into one's own anus.

I told them I fell asleep early because I didn't want them to know I spent all night Thumb-Bummin.

by J. M. Fuhqueny November 5, 2023

Thumb Bummer

A retarded homosexual who scours the Urban dictionary giving thumbs down to everyword just for the hell of it. They also enjoy shoving their thumbs down into their underpants and giving their anus a good poke.

"Watch out for this one." "He's a dirty little thumb bummer."

by Mr Lizard August 25, 2004

Thumb Bump

A Thumb Bump is a fist bump with a thumbs up to finish it off. Originated on classic TV show Thunder in Paradise. Randolph "Hurricane" Spencer and Martin "Bru-dog" Brubaker would do a Thump Bump to celebrate a job well done.

After rescuing the hostages Bru-Dog and Hurricane celebrate with a heartfelt Thumb Bump.

by HurricaneSpencer August 12, 2022

Two thumbs tongue bum

When you stick both your thumbs in someone's bum Prying and gaping it then sticking your tongue in

Dude! I got the best two thumbs tongue bum last night.

by Warday1780 December 10, 2022