A cat in a jester hat smoking a pipe and wearing 3D glasses. Also referred to as "that cat".
Though rarely found in big internet forums, fiesta cat is commonly seen in UTSNet, and is often accompanied by phrases such as fyad, zany, 5ive, and top post.
Whence the cat came from is unknown.
Thunder Pirates, "Arg!"
Mystery Earth Club Speaker
Subject: A little off topic...