Game Grumps 

An addition to my other definition.
The duo has broken and repaired, but instead of Jon, Danny from NinjaSexParty joined. Fans are not pleased.
RubberRoss has also started a series with Danny on the Game Grumps channel as well, known as Steam Train. Instead of console games, the content it has is of computer games.

Ah man, Danny can never replace Jon in our Grump hearts!

Dude, Danny is a good addition to Game Grumps.

Game Grumps by Garnet June 28, 2013

Game of phones 

A game where if someone leaves their phone lying around, someone else uses it to take a selfie.

Leslie: "I checked my pictures, it's all selfies of Paul from earlier?"

Paul: "Game of phones!"

Game of phones by Tarvu August 7, 2014

game ruiner 

A party pooper of sorts, specific to the gaming genre: someone that willfully or intentionally would go through great lengths to interfere in the normally fun dynamics - that are the norm when people get together to play games - in a disturbing manner, without remorse (subjective) or shame (ditto).

People described as "Game ruiner" have been known to display further questionable social habits, such as glaring, ogling, gawking, rubbernecking, gloating and even resorting to bitch-slapping when confronted with their behavior.

Eddy: Don't invite Larry anymore..he is such a game ruiner douche-bag!
Brent: Not to worry, he was killed last Sunday when he tried to kick the huge domino's trajectory the local kids had been setting up for three weeks, they sucker-punched him in the nuts and one shot up in his brain, causing an instant rupture as it punctured his skull.
Eddy: .......!

Below is a depiction of the most common characteristics displayed in the average game ruiner's mimic:

game ruiner by pun-ch January 11, 2016

Game changer 

Visionary; someone who looks beyond conventional methods; conceives new strategies; works to transform their industry; NDG

Nicole is a mother f**king game changer!

Game changer by Jordansmommy77 November 1, 2016

game seven 

The most exciting game in all of sports. Almost always great in hockey; usually good in baseball and basketball, though the tendency for blowouts is higher in those sports. Still, nothing is better than the winner-take-all climax of a long, hard fought playoff series.

Some great recent game sevens: 2004 Stanley Cup Finals, 2001 World Series, 2001 Stanley Cup Finals, 1997 World Series.

game seven by Dewey July 14, 2004

game ready 

The state of being high. Prevalent in cannabis culture. References the tendency of the pothead to prepare for any activity (ie soccer, basketball, poker, watching tv, ultimate frisbee) by first indulging in his/her favorite pasttime.

Dick: Hey Joe, this new jam band has a song with three 10 minute solos. You wanna give them a listen?

Joe: Dude, if I'm gonna listen to that shit we need to get game ready.

game ready by poizon_elff October 31, 2007

Game of Thrones 

A situation in which a person has bad diarrhea and must move from one toilet to another all day. Effectively staking his claim on every "throne" in sight.

Oh man..... I should not have eaten that sushi enchilada taco with extra beans last night. I feel like I'm going to play Game of Thrones all day today.

Game of Thrones by spissatus December 2, 2013