A thumb with a tough, dry, outer layer of skin due to any outside force, usually a slight breeze, blowing or moving the flame from a lighter onto the thumb, yielding a tempoary burning thumb and often leaving the thumb tough to the touch.
"Fuck, your car's A/C is giving me stoner's thumb, nig."
"I had a tough time lighting my bowl with that damn wind giving me stoner's thumb."
"I had a tough time lighting my bowl with that damn wind giving me stoner's thumb."
by Teepo December 13, 2005

In the drinking game "Kings," the Thumb Master is the player who is in charge of signalling when someone must drink. At any point during the game, the Thumb Master can put his thumb on the playing surface (table) or forehead. Everyone else must also do this, and the last person that does it has to drink. One is bequeathed this role when he pulls a 10 (or whichever card is deemed). The Thumb Master rules until the next person pulls a 10, in which the new person inherits the title.
I wasn't paying attention when the Thumb Master put his thumb on the table; therefore I had to drink!
by RGI June 27, 2007

when you're holding someone's hand, you rub your thumb against their hand. it feels nice and gives a them a comforting feeling.
Friend: "Did you do the thumb thing???"
Other friend: "Yeah, I did, I think they really liked it. They must've fallen in love with me because of it!"
Other friend: "Yeah, I did, I think they really liked it. They must've fallen in love with me because of it!"
by ValentineeeeeeG. April 7, 2021

An inconvenient bruise on the end of your thumb caused by clicking the left analog stick to run in call of duty for endless hours.
by shecks June 19, 2010

by SHANNON MOTOWAKAN September 27, 2011

by Absabsabs January 15, 2014

The act of rubbing and inserting your thumb in a girls ass while engaging in doggystyle sex to gage her interest in anal...
I wasn't sure if she was up for anal so i gave her the exploratory thumb to find out if she was down
by Q420 July 3, 2009
