1) Childish insults 2) Some childish insults 
Name calling is abusive or insulting language referring to a person or group, a verbal abuse. This phenomenon is studied by a variety of academic disciplines from anthropology, to child psychology, to politics. It is also studied by rhetoricians, and a variety of other disciplines that study propaganda techniques and their causes and effects. The ...
[n] - verbal abuse
names noun verbal abuse; a crude substitute for argument; `sticks and stones may break my bones but names can never hurt me`
the use of abusive names to belittle or humiliate another person in a political campaign, an argument, etc.
A strategy of labeling people in order to influence their or others' thinking.