What's on your mug?

Someone who plays hard every time, playing through injuries or great mental anguish.

Steve McNair plays through injuries all the time; he's a gamer.

By Fredo

A person who doesn't have a life.

Jack: Why do you look so pale, like a person without a life Me: Dude, I'ma goddamn gamer

By sync_pro

n. a person with no life beyond the keyboard and/or controllers that they so desperately cling to on a daily basis.

Gamer's have no life.

By acidbathory

Any professional hat, usually baseball, in mint condition. The brim will be flat, with the holograms still included on the bottom. That hat can be tilted, depending on region or affiliation. The hat can sit low, or rest gently on the top of the head (aka perching).

John Boy got that new throwback Cubs gamer to match his blue Nikes.

By Magooter

A woman who plays men for a living. A female player.

That gamer got him for all of his money.

By Iceman929