1. in the game of poker it means to put more money or something with value on the table
2. someone may say it during a robbery meaning give up anything with value
1. I see your 10 and i raise you 20, ante up
2. Ante up fool, i want the cash and the jewls
originally used in games of risk such as poker meaning to increase the risk or raise the stakes of the game. More commonly used now as a challenge to person, replaceable with "step up"
"if you got game, ante up motherfucker"