1. A sarcastic declaration of "yay," delivered in a mild tone as a response to seemingly good (or neutral) news that the speaker knows or suspects will have negative implications for him/herself. References the FX cartoon ARCHER, where the eponymous super-spy often responds to such situations with a weak and sarcastic, "yay."
Friend 1: How did your girlfriend take the news that you got that job at the strip club?
Friend 2: With a perfect "Archer Yay," man.
Friend 1: Yay!
Friend 2: Are you really happy for me or was that just an "Archer Yay?" Hard for me to tell.