MatPat 

That's just a theory and Game theory, Film theory, Food theory, SO MANY THEORIES!!!!

MatPat made another theory about fnaf. WHEN WILL THE FNAF THEORIES BE OVER!!

MatPat by chick-fa-le October 6, 2020

MatPat Effect 

I sense of uncanniness upon seeing the original version of an image that has been more commonly edited or modified for visual presentation.

Guy 1:Woah, this original image of MatPat is rather uncanny, bro.
Guy B: That's the um, the uuuuuuh, hold on...
Guy 2: *Googles it on UrbanDictionary.com*
Guy II: That's the MatPat Effect
Guy A: Ok

MatPat Effect by Joshua Hoodsen Fooh November 30, 2021

MatPat 

The one guy who can't even catch up with Scott Cawthon.

"Dang, that guy made me look like MatPat when he said, "Omae wa mou shinderu."

MatPat by Casual Boi July 18, 2018

MatPat 

An amazing YouTuber and Diet Coke addict who makes theories about video games and movies. He also does livestreams with his wife, Steph, at 4pm PST every weekday. His channel started out with him as a dorky theater kid doing auditions, and while he's still a dork he's a cool dork. Also pretty cute if I do say so myself.

"Hey, who was that nerdy YouTube guy you're obsessed with again?"
"Oh, yeah, that's MatPat."

MatPat by PoweredByDietCoke June 8, 2017

MatPat 

Noun
An internet idol whom inspired a culture and highly intelligent society. Host of Gametheory, one of the most highly intellectual beings to walk Earth.

Verb

To commit a highly intellectual action.

Noun:
MatPat is my idol! I tune in to Gametheory all the time!

Verb:
If my calculations are correct, which they are for I Matpatted, I will have created a quantum accelerator.

MatPat by MatPat FanClub February 8, 2021

matpat 

Matpat is a diet coke addict who did in someway get his youtube channel ( The Game Theorist) famous. He does livestreams on youtube with his wife steph. He even has a cat called Catpat and he is the only reason anyone watches the livestreams. Matpat is a real nerd.

Whos that youtuber that talk about videogames in a nerdy way and drinks diet coke?

It's Matpat.

matpat by A Loyal Theorist June 2, 2016

MatPat 

MatPat. A person who obsesses over video games, and is addicted to diet coke. May or may not have a cute wife named Stephanie, and a jerky cat named Skip. May also have a neuroscience background, and previous dance and musical theatre backgrounds.

"Did you see that weirdo with the jacket over there?"
"Yeah, he's such a MatPat!"

MatPat by assholeidiot July 30, 2017