It's a fantasy role-playing game.

DM: You are Vex Vex'ahlia, a half-elf ranger . You are the member of the famous group of adventurers. Previously, Taliesin and Marisha start eating popcorn. Scanlan manages to maintain his eyebite spell; he tries to escape the acidic digestive track by casting Thunderwave from the inside of the worm.
DM: Oh, I get to make the save to see if the Eyebite maintains itself. That would be a-- no, it rolled a ten and it's minus two on its wisdom save. So it still has disadvantage on its attacks.
Player: Okay, all right. Are there any stalactites coming from the ceiling?
DM: There are, actually. There's a number of them. Just in this general vicinity there's a whole mess of them up above from just the natural formation of it.
Player: Okay, I'm going to shoot Conjure Barrage at the ceiling and try to create noise away from us.
DM: Whereabouts?
Player: How about towards the ceiling above the frost worm?
DM: Over there? Okay. All right, so, okay. The frost worm is in the way to hit that angle, so you may have to move to do so.
Player: Which way could I shoot that he would not be in the way?
DM: You have to probably move this way to get around him just to hit him at this angle just because it's such a large entity.
Player: Huh? God, I don't know. I mean.
DM: What you got?
Player: I'm going to move as quietly as I can around towards that little crevice.
DM: Go ahead and make a general dexterity check.
Player: Just add my dexterity to it? 17?
DM: 17? Okay. As you move past, stepping as gingerly as you can, you can see it slap; it moves its face in the direction of where you're going, but you just manage to move beyond where it thought you were, and it misses you as you move by. So now you have visual on it.
Player: Okay. Now I want to shoot Conjure Barrage at the ceiling above the frost one.
DM: Okay. Conjure Barrage up here. Go ahead and roll damage.
Player: Okay. That is 3d8, I guess. 14 plus five. What's 14 plus five? 19.
DM: 19 damage? All right. And with that, you release a blasting torrent of arrows at the ceiling in this giant cone blast. It strikes into the ceiling through the force of the magical bow that you're holding. You can see a number of rocks in bits and pieces begin to chip off, and a few small stalactites crack and plummet downward. I need a dex save from Grog and Keyleth.
