bang on
Pronunciation:
verb
Definitions
(usually derogatory) To constantly talk about.
Example: I started recycling, just so she’d stop banging on about it to me.
adjective
Definitions
Precisely accurate; exactly appropriate or fitting; spot on.
Synonyms:on the markon the moneyspot on
preposition
Definitions
Exactly at
Example: I managed to arrive bang on five o’clock.