Looking for the meaning of an Italian phrase?

[Wolfeye]

Hey, everyone. I was looking for the meaning of an Italian phrase I've heard a couple of times, but don't know what it means. It sounds like "good eats," but I think it'd be spelled "gu in" if it was in Italian. Don't remember if I saw it on Find Me Guilty or Analyze That (might have been in both), but it seemed like a greeting or well-wishing (kind of like a toast, but without doing any toasting). Anyone know what this is & what it means?