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Let's put down the guitar and f*ck Matt Damon 

An expression, depicting the desire for progression to another task, derived from the recent viral video war between Jimmy Kimmel and Matt Damon as facilitated by Kimmel's girlfriend Sarah Silverman.
"Halo 3's played out. Let's put down the guitar and f*ck Matt Damon."

"Sure. Wait? What the f*ck did you just say?"

,or,

Dude, you're always skipping from one thing to the next. For once could you just hold on to the guitar and NOT f*ck Matt Damon!
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She's fucking Matt Damon 

A situation where one partner in a couple has ended the relationship by dating, and having immediate intimate relations with a new person of perceived higher social status.

See trading up
Frank: Are Sandra and Kasey still together?

Jim: No, I hear she's dating some 25 year old brain surgeon. He's loaded plus he looks like a male model. Word on the street is he took her to Mexico for the weekend.

Frank: Wow. Well, she's fucking Matt Damon.

Matt Damon Syndrome 

A recently discovered mental disorder with no known cure. Patients have been shown to demonstrate unusual behaviors such has:
1. Getting stuck in somewhere you shouldn't get stuck in (like Mars, a planet in another universe or Nazi territory)
2. Make others risk their lives to save you
3. Tricking others to risk their lives to save you
3. Amnesia
4. Tendency to beat others to death with peculiar objects (eg. Magazines)
5. Having unusually high levels of intelligence
6. Have an unusual tendency to kill Nazis
7. Being exceptionally stubborn
8. Fighting against authoritarian governments
9. Planning elaborate heists
10. Only being able to say your own name

Researchers have not agreed on a single explanation to how it spreads or what causes it, but they have identified several key symptoms. The first patient to be diagnosed with this disorder is Matt Damon.

You may be have Matt Damon Syndrome if you:
1. Lost all your brothers
2. Survived assassination attempt
3. Are an astronaut
4. Your wife is dead
5. Are a horse
6. Are a cowboy
7. Look like Matt Damon

If know someone who displays the above symptoms, call a psychiatrist immediately.

This message has been brought to you by the World National Matt Damon Syndrome Awareness Medical Funding Organization. Donations in cash, check, pay pal, credit card, wire or sexual favors accepted.
Matt's agent: Recently, Matt's been acting strangely. After his wife was killed by the government, he robbed a Casino by pretending he was a janitor. He then used the money to buy a spaceship with a wisecracking robot to fly to Mars. Then he started beating Martian Nazis to death with a magazine shouting "MATT DAMON!" We had to send Tom Hanks to save him, but he only agreed to come home on the condition Tom would dress up as a cowboy and rode him back to the spaceship. But the airlock exploded and he now has Amnesia. By the way, you look like Robin Williams."
Matt's shrink: "Thanks. Well, it seems that Matt suffers from a serious case of "Matt Damon Syndrome". "
Matt's agent: " Oh my god! Come to think of it, he does look kind of like Matt Damon! I wouldn't have known if the WNMDSAMFO didn't tell me about it!"

Matt Damon: "Hi. I'm Matt Damon. You might think Matt Damon Syndrome is a ridiculous disorder. However,it is, unfortunately, a very real disease and over 6 billion children are suffering from it. Since Matt Damon was diagnosed with this disease in 1679, the WNMDSAMFO was founded in 1682 by Matt Damon, aiming to raise awareness and reduce the suffering of those diagnosed with the disorder. If you want to make a difference for those with the disorder, donate to us now. Your philanthropy will be much appreciated by those with the disease. That's 7 billion children. So donate now. This is Matt Damon, over and out."

This message has been brought to you by the WNMDSAMFO.

Matt Damon Scarf

The act of shitting on a partners neck and covering the neck in it. Like that brown scarf Matt Damon wore in some old forgotten movie.
Person#1:Haha dude I gave your mom a Matt Damon Scarf.
Person#2:Suprise bitch I gave your dad one too.
Person#1:Fuck you
More from Urban Dictionary
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

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
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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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