So, I was at a goth club with my girl and we were making out and playing around a little, and a somewhat older man came up to us and handed me a flyer for a local munch. Then he said something to me that sounded like "us microbiologists have to stick together."

I got the gist of it, but now I'm curious -- is that a commonly used euphemism for BDSMers? Something from back in the day when people had to be a bit more discreet?