2-up

Noun

 * 1)  An item that grants the player two extra lives in the game.
 * 2)  In a game with multiple players, an indicator or identifier of player 2.
 * 3) * 1982, Harlington Wood, Jr., Atari v. North American Philips Consumer Electronics Corp., 672 F.2d 607, n. 2 (7th Cir. 1982):
 * Before any player registers points, the PAC-MAN scoring table displays in white "1 UP" and "2 UP" where the scores will appear.