A thumb ring is often warn as a sign of power. Traditionally it was worn by archers to protect their thumb during rapid firing. Although often misunderstood as a statement of sexuality, the thumb ring symbolizes strength and courage.
by The Realest John Galt June 5, 2015

After going Number 2, you take toilet paper and put it on the end of your thumb, and shove it up your pooper to wipe.
by ThatOneGuy987 October 23, 2012

On urbandictionary, a thumb war consists giving your own definition a thumbs up and giving a rival's definition a thumbs down on a daily basis while said rival does the same for himself. A thumb war is won when one of the contenders forgets to vote and/or gets a life.
by y=mx+b January 23, 2009

When a person jams their finger in their butt hole to prevent diarrhea from spilling into their pants
by James Rox Sox January 29, 2009

Keisha: Guapo, when can I come over?
Guapo: …(never responds)
Keisha: I asked you a question, why are you giving me a cold thumb…
Guapo: …(never responds)
Keisha: I asked you a question, why are you giving me a cold thumb…
by myguapolife May 12, 2017

the signature hand gesture used in extemporaneous speaking: where you're talking about foreign policy and make a fist with your thumb on top and hold it up to really emphasize your point.
he's so used to using the extemp thumb in speech and debate that i've seen him use it in class presentations as well!
by arbitrarilyunconventional March 22, 2023

"I saw this crazy girl at the club last night. I was going to go talk to her, but she was busy double thumbing at the bar."
by sweet650 March 19, 2009
