Game Slut 

Someone who has ongoing games going with multiple people.

He plays clash Royale with them and also endless Frontier with me, he's such a game slut.

Game Slut by Laughinggirl140 December 28, 2016

game slut 

When a game requires three players and you only have two. You convince a third person to play only to use them for their game playing ability (or lack thereof).

We convinced Ashely to play Pitch and we played all weekend. She was just our Game Slut and she was unaware.

game slut by manofwow December 19, 2012