Definition & Meaning of "tilted"in English

What does "tilted" mean in online gaming slang?

This term originated from poker and pinball before being adopted by competitive gaming communities. Today, it is used to describe a player who is emotionally frustrated or distracted, usually after making repeated mistakes or losing badly. When someone is tilted, they often play worse because anger or stress takes over their decision making. The word comes from a pinball machine where physically tilting it too hard locks the game, now used as a mental state where frustration ruins performance.