Muttley is the scruffy cartoon dog from Hanna-Barbera's Wacky Races, which first aired in 1968, and his wheezy snicker was voiced by the legendary Don Messick. The character returned in Dastardly and Muttley in Their Flying Machines the following year, where the laugh became his trademark response to Dick Dastardly's constant failures. Decades later the snicker found new life online as a go-to reaction sound, grouped with other classic cartoon laughs like the Woody Woodpecker laugh, and it is still dropped into memes whenever someone wants a mischievous, old-school cartoon sting.