In S1E13, Madeline and Louise begin flirting with a couple boys as soon as they find their seats at the Bangles concert. Rory is surprised. Paris tells Rory,”And before it’s dark, they’ll have every picnic basket that’s in Jellystone Park.”
Yogi Bear is a cartoon character created by Hanna Barbara in 1958. He and his friend Boo-Boo Bear often wandered around the fictional Jellystone National Park trying to steal picnic baskets from visitors.
Paris means to reference Madeline and Louise’s persistence and skill at “getting” guys wherever they go.