Nintendrone 

a person (typically someone born before 2000) who only plays games old nintendo games (Nintendo 64 and below) and thinks that all games that have no association with Nintendo are horrible games.

someone who plays only old Nintendo consoles and old Nintendo games is a Nintendrone.

Nintendrone by ourworldtoday March 5, 2013

Nintendoisbad 

Nintendoisbad is a terrible twitter account.
The memes on it are stale and the account in general is junk.

Wow have you seen this meme?
Oh yeah, Nintendoisbad tweeted it today
I was about to say the memes dead....

Nintendoisbad by oofxo December 5, 2017

Nintendrunk 

To have played video games, particularly those relating to Nintendo, so long that you feel and act as though you are drunk or intoxicated

Nerd #1: Dude, Super Smash Bros. Brawl can wait until tomorrow.

Nerd #2: NO! I HAVE TO GET ALL OF THE TROPHIES!

Nerd #1: LOL, you're like super Nintendrunk right now. Get off the Wii, dude!

Nerd #2: (slurring) I have to beat this level...

Nintendrunk by Martin Ferrell July 5, 2008

Nintenho 

A girl that likes to play nintendo.

Dang, that nintenho beat the entire game of mario kart in under four minutes!

Nintenho by brokejoke October 13, 2009

Nintendwhore 

A massive Nintendo fanboy/fangirl

Harry was wearing his Mario pajama pants, a Zelda hoodie, while playing Donkey Kong Country Returns. He's such a nintendwhore.

Nintendwhore by Brogan83 January 10, 2011

Nintendobating 

Getting great enjoyment and pleasure from playing single player on one of the many portable gaming systems(e.g. Game boy, Nintendo DS, etc.) while hanging out with a large group.

"Scott! Stop nintendobating and eat your dinner!"
"Evan, You're going to go blind if you keep playing the DS like that!"

Nintendobating by Joe Hawkes-Cates March 21, 2009

Nintendork

A gamer who exclusively plays Nintendo games. They usually own a Wii and some incarnation of the DS. They are also known to not know of the existence of any games besides Mario and Pokemon.

They will often use the saying "I've never heard of that" when popular non-nintendo games such as Call of Duty, Gears of War, or Left 4 Dead are mentioned. They are also known to be quite awkward in their movements due to their intense Wii addictions.

Guy 1: I love Super Mario Galaxy 2!

Guy 2: I love Left 4 Dead 2!

Guy 1: I've never heard of that, what is it? Is it fun?

Guy 2: It's for the 360.

Guy 1: The what...?

Guy 2: My gosh... you're such a Nintendork...

Nintendork by ThePaleGuy December 14, 2010