[s1e6]: Slutty Pumpkin

In 2001, Ted (dressed as a Hanging Chad) met a girl in a "Slutty Pumpkin" costume. They hit it off over her specialty drink—a mix of Kahlua and Root Beer she called a " Tootsie Roll "—and her knowledge of penguins.

Because he lost her number, Ted spends every Halloween for the next several years at the same rooftop party, wearing the same "Hanging Chad" costume, hoping she will show up again. [S1E6] Slutty Pumpkin

In the How I Met Your Mother episode , "long paper" likely refers to the Tootsie Roll In 2001, Ted (dressed as a Hanging Chad)

She wrote her phone number on a Kit Kat bar wrapper , which Lily accidentally gave away to a trick-or-treater later that night. In the How I Met Your Mother episode

If you are looking for a deep dive or a "long paper" analysis of the episode, the podcast recently released a retrospective hosted by Josh Radnor (Ted Mosby) and creators Craig Thomas and Carter Bays. They discuss the episode's themes of romantic hopefulness and the origin of bits like "Marshmallow and Lilypad". How We Stayed Up All Night | S1E6 "The Slutty Pumpkin"