let somebody have it
let (one) have it
To verbally attack or strongly reprimand one. When the boss finds out that I was responsible for this printing error, he's really going to let me have it.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
let somebody ˈhave it(spoken, informal) punish somebody or speak to them very angrily: She annoyed me so much that I let her have it. ♢ Dad will let you have it when he sees that mess.
Farlex Partner Idioms Dictionary © Farlex 2017