“Hot hand” is a word which comes from basketball. It refers to a player who is in good form, who is said to have hot hands. According to perceived wisdom, this player is more likely to be successful with a shot if his previous attempts were successful.
What does this have to do with sports betting, we hear you cry? Well, quite a lot, actually: there is a belief among some that a bettor who has been successful previously has a better chance of replicating that success in the future.