bang/spot on

bang on

1. verb To strike something repeatedly. Quit banging on the door, I'm coming! How much longer will your little sister bang on the piano tonight? I'm getting a headache from all that racket.
2. adjective Exactly right. I think that is a bang on analysis of Forster's novel. My estimate was bang on. I hope the boss notices!
See also: bang, on

spot on

Exactly right; perfectly accurate. Often hyphenated when used before a noun. Mr. Lynch's analysis of the company is spot on, if you ask me. I suggest we follow whatever advice he offers. Yes, those directions you gave me were spot on, thank you! Mark does a spot-on impression of our teacher—you have to hear it!
See also: on, spot
Farlex Dictionary of Idioms.

bang on someone or something

to strike someone or something repeatedly. (Especially to beat on a person or a drum.) Please stop banging on that drum! Max was banging on Lefty when the cops arrived.
See also: bang, on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

bang on

exactly right. British informal
See also: bang, on

spot on

completely accurate or accurately. British informal
2007 Clarissa Dickson Wright Spilling the Beans She advised her solicitors to give the money to my mother for me, as she believed my father would fail to pass it on to me. She was spot on.
See also: on, spot
Farlex Partner Idioms Dictionary

bang/spot ˈon

(informal) (of an estimate, a description, etc.) exactly right: She was bang on when she called him an idiot: that’s just what he is! Your sales estimate was spot on. Well done!
See also: bang, on, spot
Farlex Partner Idioms Dictionary
See also:
  • bang on
  • be at a disadvantage
  • at a disadvantage
  • address (one's) comments to (someone or something)
  • address comments or remarks to
  • address (one's) remarks to (someone or something)
  • be in it for
  • be more than (something)
  • be more than glad, ready, etc.
  • a run on (something)