Brian Griffin is the talking family dog in Family Guy, voiced by series creator Seth MacFarlane, and this laugh comes from the season three premiere, The Thin White Line, which aired in 2001. In the episode, Brian's dry reaction fits his role as the family's more intellectual, sarcastic member. Fans later clipped the laugh for soundboards and short-form edits, where its recognisable tone made it an easy shorthand for mocking a bad take. It remains popular because it is short, instantly identifiable, and works without any dialogue or context.