I wish that was true. When a phrase like that gets started, some people jump on the bandwagon to use it because it sounds clever, and they will repeat it because they think it imbues them with a perception that they are in-the-know or part of the in crowd. It's the same with any bullying, stereotyping, derogatory name-calling that can be done right on the edge of general acceptability without raising enough ire that people will challenge them. It's enough to make better people feel uncomfortable hearing its use, but not enough to say something because the response is generally, "I'm just making a joke, I don't really mean that, don't be so sensitive." Then you come off as the jerk for calling them out.
Before, I didn't care for the term and didn't use it, but now I hate it. It was used on me "jokingly" by a very close family member to break the ice when another close family member saw the bottom of my back piece sticking out from under my shirt for the first time. While I appreciated an ice breaker because I was nervous about how my tattoo would be perceived, the tramp stamp comment really hurt and it still does thinking about it. It demeaned all the pain I've been through, and now it might possibly be the way that other family member remembers seeing it for the first time. I had a short conversation with the first family member, and if I hear it again, there will be a much more heated discussion.