It's a fantasy role-playing game.

DM: You are  Kashaw Vesh, a human cleric . You are the member of the famous group of adventurers. Previously, The party, after essentially forcing this individual to reveal themself, the rakshasa fled through a tunnel underneath its room into a long subterranean tunnel fraught with traps that were set to protect it. The party managed to avoid these rather deftly until the steady decline of the hallway, combined with the increasing moisture and scent of refuse, caused a slick surface and our fantastic cleric, Brother Kash, you, slipped and fell down.
DM: You leap, slam down on top of the rat swarm that just jettisoned off the side of Keyleth. I'm going to say for that impact, go ahead and roll 1d6. It takes 1d6 bludgeoning damage from you stepping on a few of the rats.
Player: Six.
DM: Six! All righty. And they're now all around you on the ground and they're trying to swarm away from the impact zone. You still have your action.
Player: Okay, so. I haven't played a character this high-level in this system, so bear with me while I walk through this. I believe that I can attack three times in a round, right? I have the extra attack feature?
DM: Yes, as a fighter, you do. You have three attacks.
Player: Okay, so I'm going to take my axe and just try to kill as many of these things as I possibly can. So I swing my axe.
DM: All right.
Player: And I roll a two.
DM: All right, you swing your axe for the first batch of rats. Unfortunately, it's hard to see where the compost pile and the rats separate. You cleave through a bunch of the slimy mess, slinging a bunch of it against the wall, and as you spatter a bit against Keyleth, who's behind you. Roll for your next attack.
Player: Very unhappy about that. Okay, three. How's that hole looking? It's a great hole, right?
DM: You decide, as opposed to a small swath, let's make it a wider one, and your axe swings again. This time you catch a singular rat, but with the flat of the blade, and you send it flying about ten feet, where it comes back unharmed and joins the rest of its crew.
