A word originating from the Supreme Court Case Mapp vs. Ohio. Because of the nature of the case, Mapp has come to mean a wide myriad of things and has come to be sort of a way of life. Most often, Mapp is used as a replacement for already existing words.
Before Madeleine blew out the candles, Cici sang her Mappy Birthday
Madeleine: Wow Marshall, you are so well dressed.
Marshall: Mapp you!