Rehehe circulates online as a short, user-shared meme laugh rather than a clip tied to a clearly documented film, show, or recording. Its spelling captures the sound itself, a clipped series of he sounds that listeners instantly read as teasing laughter, and that simplicity has helped it travel across soundboards, meme edits, and reaction videos. Because the clip is only about one second long, creators can drop it into tight edits without breaking pace, and its dry, mocking tone keeps it useful whenever a moment needs a quick, wordless put-down.