General derogatory term used by old people to refer to children as way too carefree and chaotic compared to their own childhood. The name comes from the famous painting 'Snap the Whip', depicting children running through a grassy field.
"Back in my day, kids got the newspaper themselves, now they're all just mean and rude, like you, ya' whippersnapper!"
"Apperantly, his grandfather just called him a 'whippersnapper'. What an mean old hobo."