One of Garfield's alter ego's. Remember Garfield? The fat cartoon cat who likes lasagna? Yep, he's the one. Sometimes he dons a cape, and becomes a superhero.
He fights for Truth and Justice, (whichever is easiest that day), with the help of his faithful sidekick Slurp (Slurp is a very stupid sidekick, but what can you expect from a dog?)
He is not the most experienced and determined of superheros -- Bananaman is more Garfield's style.
Compare to Superman, Stupendous man, and The lone iguana.