1. harp on - Verb
2. harp on - Phrase
harp on (third-person singular simple present harps on, present participle harping on, simple past and past participle harped on)
(transitive) To nag about; to complain incessantly or persistently request; to continue to bring up as a point of contention.
Abang Johari, who is GPS chairman, said Umno parliamentarians would harp on religious issues which he felt was a personal matter between a person and God. Source: Internet
Harlan did not harp on money, but he is not naive, so in between all that, he was at least willing to indicate what Schill wouldn’t. Source: Internet
And maybe some people are doing that, that’s just something I really wanna harp on because it’s at the heart of what we do well. Source: Internet
I hired her to play harp on a record of one of my songs, “Darlin’ Maggie.” Source: Internet
It is a waste of time for people to harp on the past and to think that those propaganda lines of the past would help to forge a future." Source: Internet
It is due to the UPA-2’s mismanagement that no big investment had come to India in the industrial sector or even in multi-brand retail which the ruling coalition has sought to harp on as a booster to economic growth. Source: Internet