I ought to tan your hide

I ought to tan your hide is an expression used when you get into some sort of trouble and this person wants to punish you. To tan your hide in the literal sense usually means to spank or punish in a physical way. When used figuratively, I ought to tan your hide can mean to give any sort of punishment for being caught doing something wrong, illegal or otherwise against the rules; it is more common to say this to children who have misbehaved.