1 definition by AWild
An athlete who always shows up ready and wanting to play; a highly motivated athlete; often an athlete who is also very talented. (NOT just about video games as these definitions suggest, but about real sports such as baseball, football, basketball, soccer, hockey, etc.)
Yankees reliever Mariano Rivera is a gamer. He's the pitcher you want on the mound when you're trying to close out a game and get the win.
by AWild November 7, 2007