There is no agreement between poker players as to what exactly describes a bad beat. Often poker players will disagree if a particular hand was a bad beat or not. Bad Beats is a poker term that describes a situation in which a player who holds a strong card loses against a player with a weak hand. Mostly the weak hand player made a poor call that eventually hits the board and wins the pot. Here are the top 10 most heartbreaking moments in poker history of incredible tough luck and bad beats caught on video.