treat somebody like dirt
treat (one) like dirt
To treat one very poorly or disrespectfully; to treat one as having no value. I'm not surprised that so many of your employees are quitting—you treat them like dirt!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
treat somebody like ˈdirt(informal) treat somebody very badly and without respect: He treated his wife like dirt. She finally left him after ten terrible years.
Farlex Partner Idioms Dictionary © Farlex 2017