1)When someone is really really tall and blonde. They have to be really outgoing and kind of crazy. 2) When someone poops just a little bit in their pants. Its very tall, and runny.
Jack: "Omgosh, that girl is a Jessica Brown!"
Alex: "Shes definatly a Jessica Brown."
Kimberly: "So Whats up taylor?"
Taylor: "I JUST JESSICA BROWNED A LITTLE BIT!"