It's a fantasy role-playing game.

DM: You are Beauregard Lionett called Beau, a human monk . You are the member of the famous group of adventurers. Previously, Caleb grapples it with Earthen Grasp. It manages to clean the tar off the lens, and breaks Caleb's concentration on the grapple by pinning him against the wall with a blade through the chest.
DM: Nice! Starting to look pretty rough now, as parts of it are breaking down a bit. It's shaking and you see little sparks on the inside as gears are starting to connect where they’re not supposed to and grind against each other. That finish Fjord's turn?
Player: Yeah, can he back up again?
DM: Five feet or ten?
Player: Ten?
DM: One more and it’ll take an attack of opportunity. Up to you.
Player: If he does an attack of opportunity, if I move Fjord back, than we get a Sentinel strike, right?
DM: Technically, if he takes it.
