Quote Originally Posted by SLUDGE FACTORY View Post
So its basically someone who abuses children

So Phil Taylor who is guilty of serious sexual offences against women , is not a nonce so that's why he gave JR Tolkien a slap when the latter shouted at him
The above source as well as this Oxford Dictionary: https://www.lexico.com/definition/nonce
seem to state that the term is not used exclusively in relation to children.