a rule in some mixed-gender relationships that a woman may have other partners as long as they aren't men, keeping the male partner the only man involved. it usually reflects one partner's insecurity or a double standard about which connections feel threatening, and it limits the other partner's relationships along a line many find hard to justify. naming it plainly is most of the conversation.
want to talk about One Penis Policy with people who live it?
definition contributed by Tessakin