I wonder if others have experienced namecalling as children, or adults, and if it's affected you?
As a child, a parent called me "crazy", and I've not forgotten that moment, where it was, and the place in the home. He He died before I knew him well enough, and I wonder if there is an aspect to "namecalling" which is actually hurtful. I really miss dad too.
As an adult, high schoolers names were prevalent. Even at work, there were names used, usually behind peoples' backs. Uusally there was some "meaning" to the nickname.
At work, my name was "Wonderboy", and the person who named me was building on my work ethic, since I tried so hard, and he was more "political".