Doraemon began as a Japanese manga created by Fujiko F. Fujio in 1969 and grew into a long running anime about a robot cat from the future who helps schoolboy Nobita. Short voice clips from the series circulate widely on soundboards and in fan edits, where this extended hehehahaha laugh is shared separate from any single scene. Its appeal online comes from instant recognition for anime fans and its usefulness as a stand alone reaction, even for viewers who only know the character by sight.
Über diesen Sound
Doraemon hehehe laugh sound effect from the anime series, a short mischievous giggle creators use for funny reactions, pranks and meme edits.
This is a very short burst of high pitched, mischievous laughter associated with Doraemon, stretched into a rapid hehehahaha that sounds playful rather than mean. The laugh starts cheeky and quickly tumbles over itself, which makes it feel like a character has just gotten away with something clever. At under two seconds it lands instantly, so viewers read it as a teasing punchline before any visual gag has finished. It works because the tone is familiar, cartoonish and a little smug, turning an ordinary moment into a knowing joke.