A reference to the famous Ricardo Montalbon, from the ground breaking TV show, Fantasy Island. This modification of the word is meant, however, to imply that some one is 'retarded', but at the same time gives props to a legendary actor.
Girl A: "I tried to have a conversation with Dianne about the Iran-Contra Affair....she didn't know who Oliver North is."
Girl B: "Wow, you can't talk to that retardo-montalbon about anything"
Better than a 'Montalto hunch', even superior to a 'Montalto prediction'... don't leave home without it.
(only to be used when something absolutely & undoubtedly WILL occur)-
Barack Obama will be the nextpresident - I give it the 'montalto-guarantee.'