The phrase comes from French online meme culture, where a distressed speaker compares his churning stomach to Warzone, the chaotic Call of Duty battle royale. Its humour spread through short shared clips and soundboards because the comparison is instantly understandable even without context. It is now used less as a gaming reference and more as a universal stomach-trouble joke, sometimes paired with a fart with reverb for extra effect. The tiny runtime and clear punchline keep it popular for quick reaction edits.