Throttle Thumb

When your thumb gets sore from holding down the throttle on a quad.

(after a whole afternoon of riding on the quad)
"Damn, I got throttle thumb!"

by Joegus the Rogue March 29, 2010

thumb shark

Dickhead brothers (most commonly found in groups of 3) that resemble living breathing thumbs with shark characteristics. This is a rare species of thumb sharks can most commonly be found living right on the coast of Southern California near Redondo Beach

Girl 1: Those three boys just ruined our movie night
Girl 2: What a bunch of thumb sharks

by thumbsharkhater456 November 25, 2017

Thumb gummer

when you place your thumb in your partner’s butthole while having sex doggie style and it sucks your thumb like a toothless mouth, e.g. an asshole

“I put my finger in her thumb gummer last night while I was banging her from behind”

by ZanDolo October 24, 2020

kart thumb

kart thumb is a wiinjury that develops on the right hand after frequent and habitual use of mario kart using the Wii Wheel accessory while playing Mario Kart Wii.

The condition arises from the orientation of the controller/wiimote placing the button used to accelerate your kart under the right thumb.

If left untreated the condition can worsen to Wiipetitive Strain Injury and eventually Wiithritis.

Michael played Mario Kart for ten hours yesterday and got kart thumb - by the time he went home he couldn't even bend his thumb.

by pigeon assassin October 6, 2008

cold thumb

Cold thumb is Ignoring someone's text message/not typing back/not replying to someone's text.

Keisha: Guapo, when can I come over?
Guapo: …(never responds)
Keisha: I asked you a question, why are you giving me a cold thumb…

by myguapolife May 12, 2017

Thumb Plumb

When a person jams their finger in their butt hole to prevent diarrhea from spilling into their pants

-Dude, is that guy scratching his ass in class?

-Naw man, that guy's doing a Thumb Plumb

by James Rox Sox January 29, 2009

smoker's thumb

the red and/or peeling skin on the finger, usually thumb, of someone who is new to smoking and/or smokes often because they are inexperienced and the lighter flame touches their thumb or finger

Hey man, what's wrong with your thumb?
Oh, I just started smoking, and now I got a smoker's thumb.
Here, let me show you how to use a lighter!

by Devin Calcutta January 7, 2008