Mrario 

A mental disorder, mostly reffered to the side effect of the Uncotrollable Italian Syndrome (UIS). Usually accompanied with bipolar disorder and maniacal stages, wherein one cannot control their actions and speech. Mrario may occur in the age of 0 during an enduring state of clinical depression and should be treated with a long term rehabilitation in a specified clinic known as durka. The first person diagnosed with Mrario was a zero year old actor and former Weezer's frontman from Moscow, Russia (for now on he goes by the nickname Luigi). In 1995 he has reported to durka that he feels barely alive and, quote, 'у меня будто бы беды с башкой' ('it's like i'm having troubles with my mind')

— i have mrario bro
— get well soon bro
— thanks bro

Mrario by sexytrashfire November 18, 2020

Mario Kart 8 Deluxe 

Mario Kart 8 Deluxe (stylized as MARIOKART 8 DELUXE and abbreviated to MK8DX) is a Mario Kart racing game exclusive to the Nintendo Switch. It is the enhanced port (or reboot) version of Mario Kart 8 and was released worldwide on April 28, 2017. It was released in South Korea on December 15, due to the Nintendo Switch being released on December 1 there.

Brayden: Can you play Mario Kart 8 Deluxe with me please?
Baby Peach: Alright.
Baby Daisy: I love playing with you.
Baby Rosalina: Of course you can any time.

Mario Kart 8 Deluxe by Mario Kart 8 Deluxe April 12, 2022

marioplex 

10^12431
An absurdly large and specific number created by MatPat from Game Theory to describe the amount of possible and fun levels that can be created in Super Mario Maker.

A MarioPlex is a number larger than the amount of atoms in the known universe.

marioplex by Eating_Rice August 6, 2017

Do The Mario

A masterpiece of music, this is often credited as the best song created by human beings. Sung by lord and savior Lou Albano. Often, it helps cure depression and anxiety.

Do the Mario!
Swing your arms from side to side!
Come on, it's time to go. Do the Mario!
Take one step, and then again!
Let's do the Mario, all together now!

You got it! It's the Mario! Do the Mario!
Swing your arms from side to side!
Come on, it's time to go. Do the Mario!
Take one step, and then again!
Let's do the Mario, all together now!
Come on now!
Just like thaaaat!

Do The Mario by Morty c-137 January 14, 2018

Mario karted

Being in 1st place on the third lap in Mario kart. And being 10 seconds from the finish line, when you get smacked by a blue shell, then a red shell, then knocked off the course, brought back in by lakitu, hit by a bullet bill, and a star, causing you to fall off again, and then you finish in 12th place

Player 1: I'm about to win!
*blue shell*
*Red shell*
*knocked off*
*ran over by bullet*
*hit by starman*

*falls off again*
*finishes last*
Player 1: nevermind, I just got Mario karted

Mario karted by GreenBayPackers1113 March 30, 2015

Mario Kart 

A videogame created by Nintendo to realistically simulate what driving is like in Italy.

Italian Driver: "It's a-like Mario Kart onna these streets!"

Mario Kart by AnonymousDictionarist February 1, 2016

Mario Karted

To be in the lead in something or to have a streak of success, only to have your success snatched away from you at the last moment, possibly through unfair or unjust means on the part of the person beating you.

Popularised from the game's frequent result in which a 1st place can be snatched away just before the finish line with a powerup.

Can be used as a more friendly version of cockblocked.

"I was so close to making out with this girl, but then Bill Mario Karted the hell out of me by buying her a drink before I could"

Mario Karted by ItsBozzie December 30, 2009