No Honor AMONG Thieves is an idiom that has been used for centuries to describe a situation in which people do not abide by a moral code or ethical standards. It implies that those who are involved in the situation have no respect for each other and will do whatever it takes to get ahead, even if it means taking advantage of others. The phrase is often used to describe criminal activity, but it can also be applied to any situation in which people are not acting with integrity.