I know why you're here. You looked up 'urban dictionary' and found the top one by 'To be' that said when you looked up 'shark' it said it was a way to have sex.
Person 1: "A shark is a sea creature."
Person 2: "Really? Urban Dictionarysupposedly says it is a way to have sex."
Person 1: "i t s a f u c k i n g s e a c r e a t u r e"