Sarah Silverman & Jimmy Fallon, <em>The Tonight Show</em> Sarah Silverman & Jimmy Fallon, The Tonight Show

Sarah Silverman was on The Tonight Show Thursday, and she and Jimmy Fallon played "Word Sneak," where the players have to use an assigned word in conversation as naturally as possible.

Silverman and Fallon are terrific improvisers, so this is a great round. They don't have to guess what the other person's secret word is, but Jimmy in particular can pack so many weird words in that guessing would be really hard to do.

Check it out.