1. Impractical, but attention grabbing code.
2. Code written for the sake of proving a point or experimenting with a buzz-worthy new technique.
3. The Lamborghini equivalent of web development.
root: stunt casting. When a show has a guest star that is a big movie star or someone in news to draw attention.
see also: overcompensating showboating impractical
Tim: Check out this HTML5 logo done entirely in CSS.
Susan: Psh. That is just stunt coding.