I had a kiwi boss in the early aughts and picked it up from him. People here in the states would generally had no idea what I was saying or would ask if I spent

I had a kiwi boss in the early aughts and picked it up from him. People here in the states would generally had no idea what I was saying or would ask if I spent time in Oz. Cut forward a few years and everyone seems to be saying it. It was definitely a sharp incline of usage