A lively, or interesting or annoying or peculiar or uncontrollable etc etc person
Also someone or something likely to win in a game, race etc.
Also someone or something likely to win in a game, race etc.
by sevenhn November 03, 2005

In poker, a bad player at the table. Good players rely on live ones to play too many hands, and thus give away their money by making mistakes.
Almost anyone would be a live one in the high stakes poker games in Vegas since they would get outplayed by the top professionals.
by Stephen Bennett April 18, 2006
