The act of performing fellatio on two gentlemen of Italian descent simultaneously then swallowing their tomato sauce. The act is reminiscent of one person eating two separate bowls of spaghetti and meatballs at the same time.
Hey yo Tony that thirsty ass
hoo-ah we met at the club last night gave us the best double ronzonni we ever had. Yea Vinny, she ate the ol' sauseege better than ya sister!