Barney introduces his first made-up statistic: at every New York party, there is a girl who knows no one and is a "prime target" for a hookup. The Meaning of the "Purple Giraffe"
After discovering from Lily that Robin actually has a crush on him, Ted decides to prove he isn't "intense" by throwing a "casual" party. [S1E2] Purple Giraffe
This episode is often cited as the beginning of the show's "Color Theory," where the color purple (worn by Robin here) symbolizes someone who is wrong for the protagonist, contrasted later by the "Yellow Umbrella" representing the Mother. Key Moments & Highlights Barney introduces his first made-up statistic: at every
Marshall struggles to write a 25-page constitutional law paper amidst the chaos of the parties and Lily's heightened post-engagement affection. [S1E2] Purple Giraffe