It's a fantasy role-playing game.

DM: You are Vax Vax'ildan, a half-elf rogue . You are the member of the famous group of adventurers. Previously, Scanlan is no longer conscious as the bulette thrashes him around. Pike rushes to Scanlan, pulling herself over a ledge to get to him, and heals him.
DM: As you rush past, before you attack? This duergar that was right by you, that has currently grown to a larger size gets a free swing at you.
Player: Ain't no thing.
DM: That's going to be a 21 to hit.
Player: Okay, that hits.
DM: All right, with its war pike it takes-- deals 14 points of damage to you.
Player: Who cares, I'm saving my gnome friend, okay. Here I go. 14, it's a 25 to hit his butt.
DM: 25 hits.
Player: This is my keen dagger, with vorpal blade, two plus seven is nine, that's just nine. Where's a pencil, that's a pencil. And then we add my Sneak Attack damage, which is six, seven, ten. 15. 21, plus nine, is 30.
DM: All right, nice.
Player: To the butt. Specifically to the butt.
DM: As you rush up, you take a moment as it's thrashing about, and you can see what looks, anatomy-wise, to be probably where it expels whatever it eats.
Player: The hole? Right in there.
DM: You go ahead and just slash and eviscerate there.
Player: How do you like me now?
DM: Even back there it's heavily armored, it takes, you carve through, and it-- You've definitely left a lasting impression on this bulette.
