Cosmo Kramer is a character played by Michael Richards from the tv show Seinfeld. On the show, the character is Jerry's neighbor and was described as a 'hipster doofus.'
In the episode 'The Letter,' Jerry's girlfriend paints a portrait of Kramer. An elderly couple buy the painting after remarking "He is a loathsome, offensive brute, and yet I can't look away.' The poster of the painting is still popular twenty years later.