Canned laughter, also called a laugh track, became a standard television production tool in sitcoms and comedy shows during the 20th century. Instead of coming from one specific meme source, this kind of sound spread online because editors recognized it instantly from TV. It remains popular in short videos, reaction edits, and parody clips because a brief burst of prerecorded audience laughter can completely reframe a scene. Even without visuals, listeners associate it with sitcom timing, cheesy punchlines, and intentionally forced humor.