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 throws out a fireball, hitting two of the lackeys. The mage uses Misty Step and Scanlan tries to counterspell his attack, inspiring himself with fusaka.
DM: Yes. And has pulled out a pistol. So the gunner here, using a pistol, is going to take three shots at you, Vax.
Player: With disadvantage.
DM: With disadvantage on them, correct. Well, two shots. One, and then a reload, and then one. So the first shot with disadvantage, that's a 27 and 24.
Player: That hits.
DM: All right, so the disadvantage has faded.
Player: Loses it for the rest of the round.
DM: But still. You take from the first hit 12 points of piercing damage, and the second strike without disadvantage is terrible. That is a 13.
Player: I'm fine.
DM: Rolled a three, but it did not roll enough to misfire. So reload, last shot fire misses. It's going to run this way.
Player: Oh, can I uncanny dodge? Or is it too late?
DM: Yeah, you can do that. So half damage. All righty, the other one who's in front of you, Grog, and is scared out of his mind is going to attempt to step back.
