Short looped laugh clips like this spread through meme edits and soundboards because they work without any context or setup. The rehehehe wording mimics how cartoon giggles are written online, which made it easy to search, share and reuse across short videos. It sits alongside other reaction laughs like goofy ahh sounds in creator libraries, pulled out whenever a moment needs an instant silly tone. Its popularity comes from timing rather than a single viral post, as editors keep reusing it for jokes, fails and exaggerated reactions.