Back in the day I used to work with teleprinters and it was often necessary to roll up the tape (that's the ticker tape you see in old movies). So we rolled it as you would roll a flat ribbon, around the spread fingers and thumb.
One day a guy who was watching me said, "You're rolling that left handed. You must be quadrilateral."
He probably meant ambidextrous but I've never been quite sure if he was calling me a square.