Fatov (Russian: Жирнов) is an imaginary mascot of the 2014 Winter Olympics in Sochi, Russia. Bart creates a pin of this character by cutting out the lower part of Homer's face from his driver's license, turning it upside down, and adding eyes to the chin.
He then trades it to the collectible pin salesman for Lisa's pearls. The salesman is enchanted by the pin and has a romantic fantasy (strongly referencing Dr. Zhivago Including The Music) of spending time with the "real" Fatov, which involves Fatov and him ice skating and then taking a sleigh ride to an ice palace. According to Bart, Fatov represents "the Russian spirit of sloth and alcoholism."