Its a ridiculous phrase and concept. I've heard it said on here about men being too short or Dhs having head colds or gaming. It seems to allow the person feeling the ick to abdicate all responsibility. Grow the fuck up, and start making your decisions based on what is in your long-term best interest and not on what you happen to feel. And for what it's worth, feelings are a rubbish way of making decisions. I personally feel that I would get on great with Jason Momoa and I would be a superb figure skater. But at age 60 I'm going to engage my rationality and give them both a wide berth.