Ok I don't know if there's a common command for this, but I saw two different (yet related) things that I think would be really cool to teach my dog.
The first was when I was at a horse barn and the owner had three medium to large dogs wrestling and playing in the yard. He told them "Finish" and they all quit playing and just kind of chilled.
The second was when I was watching a training video. The trainer was using a game of tug, so the dog remained extremely focused and active even when told to let go of the toy. When the trainer finished the session, he said "we're done" and the dog relaxed and just trotted off with him.
So is this stop-your-high-energy-behavior-and-just-chill-out command often taught? And how can you teach it to your dog?