Thor

God of Thunder. He is believed to have been the one to originaly concot the Brewing a Storm spell. He used a version of the spell in order to save the inhabitants of the hamlet of Bruce in southeastern Llewdor from a monster that was ravageing the town. The people praised him for saving him, and begged to build a temple in his honor. The god said he had no need for more places of worship and said that a simple flag marking the site of the battle would suffice. It became known as the banner of Bruce, or Bruce banner. The banner flew for scores of years until another hulking monster(only thing known about the monster was that it was green) pillaged the village. The village was destroyed, and the banner torn beyond repair. There was no time to call for devine intervention. Because Thor wasn't around to save the town that time he was blamed for not coming, and when the town was rebuilt, it was ithout the banner of Bruce.

Real World
Obviously Bruce banner, and the hulking green monster that destroyed Bruce is a pun, and joke towards Bruce Banner and the Incredible Hulk from Marvel Comics.