A blanket statement used in a situation where one party intentionally acts against the wishes of another party, despite initially agreeing to their terms. Broad enough to confuse the target, but
vague enough to
deter any further
questioning. For maximum effect it should be said with an air of mysterious confidence.
Guy 1: "
What's the deal bro? I called
dibs on that chick, and now you're chatting her up?"
Guy 2: "
The game has changed, my friend. Now run along, I'm working here."
Guy 1: "...Whatever, man."