Joke Dissection 1.00 [30 Rock]

When Liz Lemon's bridge-and-tunnel ex-boyfriend, Dennis Duffy, calls her dummy, it's funny—but it's also brilliant.

It provides a radically concise exposition of how a comedy writer could ever have loved him in the first place. (I think they also liked eating food in bed.)

Also, like her other more recent ex—Jon Hamm as Dr. Drew Baird—Dennis has clearly been living it up in the bubble.