Posted by Lotg on March 14, 2004
I think this is an old Aussie term (or another of our English inheritences). Les's 'turn up for the book' triggered me to think of this one.
It's usually said when someone doubts someone else's sincerity, veracity or actions.
eg. If I said to you, I was late cos of an accident on the road. And you didn't believe me. You could respond 'Come on, turn it up!". (eg. gimme a break, tell the truth).
Does anyone know the origin of this term? It sounds to me like something that would emerge from a card game - eg. you're bluffing, turn up your card, show your hand.