At my Mom’s table we pronounced it “Monigut” , Monicotti is a single piece, Monicotte is plural- in University Italian!
LOL! "monigut" is Sicilian dialect, with which we entertain ourselves around our table as well:
A single is a manicotto, like a single raviolo or gnoccho, but no Americans use these forms or recognize that the "i" ending in Italian is already a plural -- the Italian-American dialect of pluralizing plurals is a work of art! "Yo, doll, we're having crabs and spaghettis on Sunday!"
But really, for the benefit of others reading who may not understand the joke, "monicotti" is not the proper spelling -- it's "manicotti." Mani = hand, cotti = cooked (plural - singular is "cotto").
A similar word is biscotti -- bis = twice, and cotti = cooked. Biscotti dough is baked like cookie dough and then toasted to make them dry.