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thumbhorn 

v: when a man uses his thumb to help ease his limp penis into a vagina -- this act is often performed while drunk and resembles the operation of a shoehorn fitting a foot into a shoe
I drank 37 beers last night and there was no chance I was going to get hard. I definitely had to thumbhorn the bitch.
thumbhorn by thebozak June 11, 2006

thumbfart 

A thumbfart is when you misspell a word in a tweet or text message and send it out without realizing it. Similar to a brainfart when you speak. It's a word created by Dustin Zito of Real World Las Vegas on MTV. Season 25.
"I worked out like a beast today. Tonight I'm gonna need a message!" This is a thumbfart. The word should have been "massage" but "message" was used and sent by mistake.
thumbfart by meatjockey October 11, 2011

Thumbcopter 

When in doggy style position, twist your wrist inward to the "thumbs down" position. Place your thumb over her bung-hole and move it back and forth in a circular motion, much like the blades of a helicopter.
Girl to guy: "Give me the Thumbcopter!"

Guy to guy: "I Thumbcoptered her last night - dirty girl"
Thumbcopter by Humpmap.com July 15, 2006

thumbfarming 

The act of fishing for likes on social media
See that picture of Brittany humblebragging about standing next to Beyonce at the Grammys? She was soooo thumbfarming
thumbfarming by The Cruff April 2, 2018

Thumbpotence

noun: the condition of no longer having the required strength or energy to send another text message. See thumb strength.
"I sent, like, thirty texts to my chick... and now I think I have thumbpotence."
Thumbpotence by junhunglau April 7, 2009

thumbfoolery

A typo while sending a message on a phone.

See also: swypo
"I finally killed that girl I like in the park last night!"
"Uhh, I hope you mean 'kissed'..."
"Shit, yeah...stupid thumbfoolery"
thumbfoolery by TheRealTBiss July 10, 2020
More from Urban Dictionary

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026
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