Peter Griffin is the main character of Family Guy, the long-running animated TV series created by Seth MacFarlane that debuted in 1999. Short Peter voice clips have circulated for years in compilations, reposts and meme edits because his delivery is instantly recognizable. This singing-style “hehehe” clip is mainly used online as a humorous reaction sound, especially in short videos where a character acts childish, self-satisfied or bizarre. Its staying power comes from how quickly it signals Family Guy humor without needing much setup.