A metaphor of unusual clarity and sophistication, generally arising from the mind of an idiot savant Greek restauranteur. Can also originate when pharmacy degrees go unfinished. The robustness of the manettaphor is inversely proportional to its political correctness,
Guy 1: I need a drink bad. I am dry as a nun's nasty.
Guy 2: Duuuuuuuuude, quit with the manettaphors already.