not do (someone, something, or oneself) any favors
(redirected from not do one any favors)not do (someone, something, or oneself) any favors
To be problematic or detrimental to someone, something, or oneself. I knew that I had to get up at 4 AM today, and I didn't do myself any favors by staying up late last night. This divine chocolate cake certainly won't do your waistline any favors this holiday season.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.