The Shark is the nickname for Washington Nationals outfielder Roger Bernadina. He relentlessly patrols the outfield and attacks every fly ball in his direction. After making a spectacular play or hitting a home run, he puts his hand on top of his head, representing the dorsal fin.
Fan 1: Did you see The Shark last night?
Fan 2: 2 for 5 with a game tying home run in the ninth! Yeah, Roger is the man!
Fan 1: Yeah, he will easily win MVP this year.
Fan 2: Most Vicious Predator!