The exact origin of the 'Cliché Mental' clip is unclear, which is common for short voice memes passed between soundboards. The French phrase translates to 'mental cliché', and online it functions as a sarcastic tag for anything formulaic. It circulates mainly as a reaction sound in meme edits and short videos, where creators use it to call out predictable behaviour with a single dry remark. Its staying power comes from versatility: almost every genre has clichés worth mocking, so the line keeps finding new targets.