get someone bang to rights
get (one) bang to rights
To view or judge one accurately. Primarily heard in UK. Yes, the article is unflattering, but I think they got him bang to rights—he can be a bit of a jerk at times.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
get someone bang to rightsBRITISH, INFORMAL
If someone gets you bang to rights, they show a good understanding of you and describe you accurately. I read Matthew Sura's piece on you last month and I thought he got you bang to rights. He is described as a thinker and a worrier. `My wife thinks that gets me bang to rights.' Note: This is probably connected with the expression `bang-on' or `dead-on', meaning `exactly'.
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012