This sound is best understood as a general cartoon villain laugh rather than a quote tied to one confirmed character or film. Short evil cackles like this have stayed popular in online editing because they instantly communicate mischief with almost no setup. Creators use them in memes, prank videos, gaming clips, and reaction posts whenever someone acts devious for comedic effect. It often fills the same role as a dramatic sting like a vine boom, but with a more playful and theatrical tone.