do (someone or oneself) no favors(redirected from do him no favours)
do (someone or oneself) no favors
1. To not be helpful to someone or something; to hinder or be detrinmental to someone or something. You do your kids no favors by catering to their every whim.
2. To act in a way that reflects negatively on oneself. Just stop talking—you're doing yourself no favors by babbling to the CEO.