1
                           general:: 
                            Phrase(s): keep (going) on about someone or something 
to continue to talk excessively about someone or something.  •  I wish you would not keep going on about Tom and Jill.  •  Don’t keep on about my haircut. It’s perfect!
                        
                        
 
                        
                            McGrawhill's American Idioms And Phrasal Verbs