Witch cackles have been a stock sound in theatre, cartoons and Halloween entertainment for decades, drawn from the familiar image of the wicked witch in fairy tales and seasonal folklore. The sharp, exaggerated laugh became a shorthand for spells, potions and mischief long before short form video, and it carried easily into memes, edits and soundboards. Online creators reuse it every October and throughout the year for spooky transitions, villain jokes and prank reactions, because a single laugh instantly sets a haunted, playful mood without any setup or explanation needed.