To
a-game someone: To try it on with a girl.
A persons
a-game: Their effort in
trying it on OR the person which they are trying to get in with.
a-gaming: Chatting to a girl with the sole purpose of trying to get in their pants.
The
A-Game: the art of trying to pull
A-game ON!: an expression used by others when they spot their mate on the a-game