Thumbgina 

The extra skin between your index finger and thumb. Not to be mistaken for a thumb wenis.

Would you like to touch thumbginas?

Thumbgina by Kumbuchadumpster May 9, 2023

thumbnailed 

When someone looks good in a thumbnail picture, and you click on it only to find out they don't look nearly as good in the full picture, you've just been thumbnailed.

"Ooh, she looks hot."
*click*
"Dammit! Thumbnailed again!"

thumbnailed by ibbit June 28, 2009

Cross-Thumbing 

Cross-Thumbing is a technique developed by Dr. Mark Ringwald PhD. and Dr. Nick Pollack PhD. at their video gaming ergonomic laboratories at Brandeis University. The technique is mostly applied when playing the Nazi Zombie segment of "Call of Duty: World at War". The technique consists of controlling the right thumb stick of an XBox 360 controller with one's left thumb while the right thumb is occupied with pressing one of the four buttons above the right thumb stick. The crossing over of the left thumb across the center of the controller, and in said gaming application is most useful while rebuilding barriers in the zombie level's windows to slow down the flow of zombies in the house. The technique allows the player to repair said barrier as well as aim and dispatch targets within the level.

Holly shit Doo, did you see that fucking sick cross-Thumbing stabbing action on that mother fucker? I cut his fucking dome off, NOOCH!!!!!

Cross-Thumbing by Cactus Jack O'Malley March 5, 2009

Thumbnail 

The cover photo for a YouTube video. Usually to get your attention or show what the video is about.

Put boobs in the thumbnail to get more views dude!

Thumbnail by TheRedBeanie__ July 20, 2016

Thumbing Your Nuts 

Wasting time doing absolutely nothing. Usually in a work setting.

Dave: Have you accomplished anything today?

Paul: Hmmm, well, I did make some copies.

Dave: You've just been standing around thumbing your nuts, haven't you?

Thumbing Your Nuts by SteelerB56 February 28, 2011

Thumbnail Syndrome 

The phenomenon in which someone seems far more attractive in the thumbnail version of a profile picture than they truly are.

I thought the girl who sent me a friend request was hot, but it turned out to be a case of Thumbnail Syndrome.

Thumbnail Syndrome by Ken_II July 27, 2009

thumbing in a softie

The term given to pushing a flaccid penis into the vagina.

Drunk dude: Im too pissed, its never gonna work
Female: Cmon work with it otherwise ill fuck your friends
Drunk dude: Well alright ill try thumbing in a softie.

thumbing in a softie by Jared Ellis January 18, 2008