They're using terms associated with poker. As in most casino games, there is a language of its own to describe the action or the players.
Poker is no different, and in fact, has more jargon than any other game.
Following is a list you may want to study if you're going to be sitting down anytime soon to play poker. Another term for betting. A small sum of money, placed in the pot by each player. Antes are used in Stud and Draw, but not in Hold'em or Omaha. A bet that must be posted by the player two seats to the left of the button.