Give somebody the shaft
Definition 1 of 1
Pro Tip 1/3Negative Feelings
This phrase often conveys strong negativity and resentment towards the unfair treatment received. 
After being overlooked for a promotion again, Helen felt the company continually gave her the shaft.
Pro Tip 2/3Colloquial Usage
Used mainly in informal situations like conversations among friends, not in formal writing or speeches. 
I can't believe I failed the test, the teacher totally gave me the shaft.
Pro Tip 3/3Caution with Context
Be careful when using it; ensure the context clearly shows unfair treatment to avoid misunderstandings. 
When they picked everyone but me for the team, I felt they were giving me the shaft.