Caught Stealing is a term used to describe the act of taking something without permission. It is a criminal offense and can result in fines, jail time, or other punishments. The term 'caught stealing' is often used in baseball, where it is an infraction for a runner to attempt to advance to the next base without the ball being hit. In this context, the three letter solution OUT is used to indicate that the runner was caught stealing and was forced OUT of the base.