To cool down, quit being a bitch, quit moaning about something, to let something slide.
Guy: You like this guy or something?
Girl: You mean more than my boyfriend who I'm trying to make out with right now?
Guy: Well, put some ice on it. You ever think I might want to talk?
Girl: No, you don't. You want to celebrate a public humliation. And I'm sorry. That's a little played out.