Just Fucking Die Already. Conveniently it also is the acronym for the Jewish Funeral Directors Association, but Just Fucking Die Already is a polite way of saying to someone, "Just fucking die already."
Akin to S.T.F.U., J.F.D.A. is meant to be used in mixed company when you can't text, email or say what's really on your mind. Often shortened to "F.D.A." or "Fucking Die Already."
My English professor needs to J.F.D.A., we have 3 papers due this week as it is...F.M.L.