name-calling 
noun [mass noun]
Abusive language or insults: the party’s internal bickering and name-calling...
- Meetings sometimes end in shouting, name-calling and insults.
- It gets to be quite fun, in an awful kind of way, to spot the childish name-calling, the insult words that don't mean anything.
- Most of the incidents involved name-calling, verbal abuse and racist comments, rather than physical assaults.
- reinspect
- reinspection
- reinspire
- reinspirit
- reinstal
- reinstall
- reinstallation
- reinstalment
- reinstate
- reinstatement
- reinstation
- reinstator
- reinstauration
- reinstaure
- reinstil
- reinstitute
- universal arithmetic
- Universal Aunt
- Universal Aunts
- universal bank
- universal banking
- universal bishop
- Universal City
- universal compass
- universal coupling