rabbit on
phrasal verb with rabbit verb [ I ] uk/ˈræb.ɪt/ us/ˈræb.ɪt/
UK informal disapproving
没完没了地说;唠叨;喋喋不休
to continue talking about something that is not interesting to the person you are talking to
He's always rabbiting on about his stamp collection. 他总是没完没了地说他的集邮。