Harley Quinn was created for Batman: The Animated Series, where Arleen Sorkin gave the former Arkham psychiatrist turned Joker sidekick her distinctive bubbly voice. The character quickly outgrew a one-off role and became a central figure in Batman stories across animation, comics and film. Short voice clips like this one circulate widely on soundboards and in fan edits because they capture her personality instantly, making a familiar cartoon moment easy to reuse as a reaction.