This audio is known online mainly through reposts and soundboard uploads under variations of “qui n'a jamais lavé son zeub” and “celui qui n'a jamais laver son zeub.” Its exact original source is not clear from the available information, so it is best understood as a French viral quote clip rather than a confirmed movie or TV sample. It spread because the phrasing is vulgar, unexpected and easy to drop into short edits, where it functions as a blunt comedic interruption or embarrassing punchline.