not do any favors for (someone, something, or oneself)(redirected from won't do any favours for him)
not do any favors for (someone, something, or oneself)
To be problematic or detrimental to someone, something, or oneself. This divine chocolate cake certainly won't do any favors for your waistline this holiday season. I knew that I had to get up at 4 AM today, so I really didn't do any favors for myself by staying up so late last night. The scathing report in the New York Times certainly doesn't do any favors for the senator, who has been trying to recover from several recent scandals.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.