The phrase film de cul is everyday French slang for a cheap adult or trashy film, and the clip circulates online mainly as a reaction sound rather than as a quote tied to a confirmed film or show. Its spread comes from short-form edits and soundboards, where a two-second insult can be reused under almost any bad scene. Because the wording is crude and instantly understood by French speakers, creators keep using it as shorthand for low quality, awkward taste or a scene that feels unintentionally sleazy and funny at the same time.