put through the mill

From through the mill.

put through the mill (third-person singular simple present puts through the mill, present participle putting through the mill, simple past and past participle put through the mill)

1. (transitive, figuratively) to be abused or treated very harshly; to suffer intense anguish, stress, or grief.

• go through the mill
• put through the wringer
• put through the mangle

• “put sb through the mill”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “go through put someone through the mill” (US) / “go through put someone through the mill” (UK) in Macmillan English Dictionary.
• “put somebody through the mill” in Longman Dictionary of Contemporary English, Longman.