The phrase comes from everyday French slang, where se taper des barres means to laugh a lot, with barres evoking the ache of laughing hard. Online, the clipped spoken version circulated as a ready-made reaction on soundboards and in short video edits, detached from any single show or creator. Its appeal is how specific and local it feels compared with a generic laugh track, so French-speaking users reach for it to mark something as genuinely funny, while others use it for its expressive, meme-like delivery even without speaking French.