The line comes from The Wizard of Oz, the 1939 film adaptation of L. Frank Baum's story, where Margaret Hamilton plays the Wicked Witch of the West. In the film, the witch uses the threat while pursuing Dorothy, and the full version also mentions Dorothy's little dog. Decades later, the delivery survived through television reruns, Halloween screenings and internet soundboards, where short villain quotes are reused for jokes rather than horror. Its recognisability keeps it in circulation for spooky edits, parodies and reaction clips.