Robin: Hey, Ted, what are you doing for Halloween?
Ted: Well...
Marshall, Lily, Barney: Aw.
Robin: What?
Lily: Every Halloween Ted waits for the Slutty Pumpkin.
Ted: That's right.
Robin: What's the Slutty Pumpkin?
Ted: You mean, who is the Slutty Pumpkin? It was four years ago. I was at this Halloween party up on the roof of our building. I'm about to call it an early night when out of nowhere appeared this girl in the sexiest pumpkin costume.
Robin: Wait, how can a pumpkin costume be sexy?
Ted: It was carved in strategic places.