The phrase comes from gaming slang, where HP stands for health points and reaching 1HP means a character is one hit away from defeat. Clips built around that moment have spread through gameplay videos, streams and short-form edits, where creators use the panicked callout as shorthand for a close call. It has stayed popular because the situation is universal across shooters, battle royales and survival games, and the delivery instantly tells viewers the stakes without needing any extra explanation.