Give somebody a piece of your mind
Definition 1 of 1
Pro Tip 1/3Emotional Intensity
Expresses strong emotions and frustration towards someone's actions, not just casual feedback. 
After the third time he broke his promise, I gave him a piece of my mind.
Pro Tip 2/3Colloquial Usage
Commonly used in informal situations among friends or family, but may be too direct for formal contexts. 
I finally gave my noisy neighbor a piece of my mind last night.
Pro Tip 3/3Impulsive Reaction
Sometimes done impulsively when someone is fed up with a situation; could later lead to regret. 
She didn't think before she gave her colleague a piece of her mind about the messy desk.