double standard

double standard (plural double standards)

1. The situation where two groups or individuals are the same in pertinent ways, but one is condemned for it while the other is excused.
   • 1976, “Missouri Breaker”, in Playboy‎:

     For example, when discussing relationships, she admitted that she believed in a "reverse double standard".

2. A pair of monetary values, i.e. a gold standard and a silver standard, both of which are legal tender.

• double standardist

• special pleading