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, Grog uses his Titanstone Knuckles to Enlarge and runs out right towards the dragon. Scanlan, still invisible, dashes through the ice.
DM: That will put you about there. Okay. Yenk has a reach of ten because his arms are long, and you're within his combat range, so as soon as you fly up, he swings out with his fist to attempt to impact you.
Player: All right, Uncanny Dodge.
DM: As you're with your wings, dagger out, this fist comes swinging like a battering ram from the side. That is 22 to hit. Misses. (whoosh) You just barely dodge out of the way. You feel the force of it, the wind batter a bunch of errant falling sleet and snow across your face, but you rush past, the hasted bonus saving you on that one.
Player: Okay, so how far did I just go?
DM: That would have been 55 feet.
Player: 55 feet. I can go 120 in one action, so that's my movement.
DM: Halved, yeah.
Player: Halved, but 120, so that's my movement, total. I'm going to throw Whisper in his face. I'm not going to bamf there; I'm just going to throw the dagger.
DM: Into Vorugal?
Player: Vorugal's face. That's halfsies, so I'm going to roll it again. That's way better. That is a 32.
DM: That hits. How many Luck have you used, by the way?
Player: One. That is 12 plus the psychic damage.
DM: I thought you used Luck once before, today.
Player: I don't think so. Not since waking up.
DM: It would have been yesterday. You're right.
