Definition
A whippersnapper is a young and impudent person who is often perceived as being overly confident or disrespectful. It's a somewhat derogatory term suggesting the person is inexperienced and presumptuous. Think of it as calling someone a 'cocky kid' or a 'smart aleck.' Unlike someone who is genuinely wise or experienced, a whippersnapper's confidence is often unfounded. They are generally seen as annoying or irritating by older people. It's a way of putting someone in their place.