Nov 20, 08 4:49pm Permalink Me: Paris Hilton broke up with that ugly guy. Mary: Great. Me: Do you think she's jumped the shark? Mary: What does that mean? Megan: It refers to the defining moment when a television show goes from being good to sucking, derived from Happy Days, when Fonzie literally jumps the shark. Mary: Wow. How do you know that? Megan: How do you NOT know that?