It's a fantasy role-playing game.

DM: You are Beauregard Lionett called Beau, a human monk . You are the member of the famous group of adventurers. Previously, Fjord is quickly rendered unconscious, but uses Relentless Endurance to pop back up to one hit point. He is almost immediately hit into unconsciousness again.
DM: You get dragged 20 feet through the water into range with it. Beau, you make your Sentinel Strike on it?
Player: Oh!
DM: Natural 20, nice. Go ahead and--
Player: That was awesome. Doubling the dice, that's eight plus four, which is 12, plus another dice, that's two.
DM: The dice of the enlarged is also doubled, too.
Player: That's right. That's two plus another four. Sorry, that's two doubled which is four, so that's 16 damage.
DM: 16 points of damage. Crack!
Player: As he grabs the chain, big Beau steps on the chain and cracks him right in the face.
DM: As it gets cracked, you watch as one of the teeth goes flying from the impact of your giant elbow hammer into its jaw. Using that momentum, it looks back, its eyes clenched down on Fjord, now almost prostrate before it, holding onto the harpoon, and goes for the face. This is with disadvantage, though. That'll save you. It was a 17 and a two. It goes to bite you, and you manage to pull up your sword in the way and block it. Its jaws open and this terrible fishing breath smell cascades over your face.
