Mushu is the wisecracking dragon guardian in Disney's animated film Mulan, released in 1998, and voiced by Eddie Murphy. Created as comic relief beside Mulan, he constantly overstates his power despite being small and out of his depth, which made his boasts a favourite for quoting and remixing online. The 'your worst nightmare' line circulates as a short, self-contained clip because it captures that overconfidence in a few seconds, and it remains popular in memes, edits and reaction videos where a small or unlikely character tries to sound intimidating.