Fan Casting Acrofatic in Sort by Tropes

This is when a fat or heavy character is much Faster Than They Look. After some chuckles from the audience, they reveal that they can maneuver like a gymnast, sprint like an Olympic runner, or kick you like Bruce Lee. This trope is likely a subversion of the Mighty Glacier and the idea that someone large is automatically slower because of their size. May intersect with Stout Strength if the character is also strong and tough, although being merely fast and easily hurt is not unheard of. The character may be a Heavyworlder, explaining some of their ability and density.