Woody Woodpecker first appeared in the 1940 cartoon Knock Knock, created by Walter Lantz, and his manic laugh quickly became the character's trademark. The bird starred in decades of theatrical shorts and television cartoons, making the cackle familiar to generations of viewers around the world. In Brazil, where Woody is known as Pica-Pau, the laugh is widely shared under the name Risada do Pica Pau. Online, creators reuse it as a shorthand for mischief and mockery, which keeps the decades-old sound instantly recognisable in memes and short videos today.