From wiktionary:
Contraction of "va a fare in culo"; literally: "go away and have a sexual intercourse into the anus".
He used the gesticular version when asked a question he didn't like by a reporter -- in a Catholic church no less! What would his mama say!?
From a Boston Herald article in 2006:
- Jake If you only spend 20 minutes of the rest of your life on economics, go spend them here.