The phrase is Spanish slang built around brotecito, a joking diminutive of bro used between close friends. Clips with this line circulate in Spanish language meme edits, short videos and WhatsApp chats, usually detached from any longer scene. That portability is why it stuck: the whole joke is in the accusation itself, so it works over game traps, electric fence pranks, static shocks and cartoon electrocutions without needing context. It remains popular as a quick, expressive reaction sound rather than a quote people need to place.