The superficial, overgratuitous, and "too little too late" speech that comes at the end of a poorly serviced restaurant meal from a neglegent waitress in the hopes that she might still get a tip.
Waitress: "why THANK you SO MUCH for honoring us with your visit tonight!! Is there ANYTHING else I can get for you? ANYTHING at all? Do you just want a bill? I've got it right here. Thank you SO MUCH!"
Customer: "Um, how about the two cokes we asked for a half an hour ago while you were in the back picking your nose? God you're a stupid bitch. I'm not giving you a tip for that shitty tip atonement."