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
Person#2:Suprise bitch I gave your dad one too.
Person#1:Fuck you
by Anonymous Magic Man December 12, 2009

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
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.
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.
by Knowmadd April 11, 2008

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!
"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!
by Derek Weyhrauch February 27, 2008

A mix between Arnold Schwarzenegger and Louis Litt, Jaromir Jagr and Usain bolt, Jordan Belfort and a Sumo wrestler. This man can crush a meatball sub before you could sit down, this man can go bar down baby on every occasion, this mans Instagram has a 100% chance of having every picture with his shirt off; this man is Damon
by NeumSauce December 2, 2020

Damon is a average nerd with glasses and ugly clothes, but what nobody realises is that he is really a depressed son of a bitch who is strong as fuck and could beat you up.
by Why are you even here? March 5, 2020

A loser who made an post onto Urban dictionary about himself. However you describe him you're probably right.
by CrusaderStar November 27, 2021

Damon is a Detroit slang for a "Big ass black man who gay as hell but is gangsta".
Usually identified by their lack of shirt and hanging around brothels.
Usually identified by their lack of shirt and hanging around brothels.
by LilJitAki July 21, 2023
