Manfetti Share definition Flag During sex, when you pull out and cum all over a girl in a act of celebration. Dude I was banging Rawanda on the New Years Eve I blew my manfetti all over her. Manfetti by az_das_6 July 29, 2011 0 0 Get merch Get the Manfetti mug. Buy Now — $32.95 See more merch