So, up means like the movement of taking out of the card? Away from the sleeve?In this idiom, it means "in a direction away from the ground". The idiom comes from card-playing or stage magic, where someone may hide a playing card or other object in their sleeve.
Away from ground and hidden in sleeve?Think of "up" as "hidden in".
It's hardly going to be close to the ground, is it?Away from the ground and hidden in sleeve?