Lena Dunham Cracks Up Jimmy Fallon With a One-Liner

Girls star Lena Dunham appeared on The Tonight Show armed with the funniest flashback story. She and Jimmy Fallon recalled the last time they had seen each other, which was at Howard Stern's 60th birthday party. Lena told the host that Howard had called her a "fat Jonah Hill-looking girl." Instead of backing down, Lena then came back with an equally hilarious sting, and after hearing her one-liner, Jimmy started to laugh uncontrollably. Watch the hilarious scene go down in the video above, and then see Lena own Jimmy in Pictionary.