2.) a sexual act performed by three people together
3.) a triumvirate, i.e. three people ruling a country or company together
2.) "Hey, Tiffany, how about you and me and Delicia go over to my place for a threesome?"
3.) Now that Berrington has taken over the regional management, I think we're soon going to see an end to the Wallace-Kingwill-Mason threesome.
A fantasy for most men because it is NEVER going to happen.
If it did,they probably would be left out because the two girls would forget he was there.
You have heard about it, seen madeup footage of it, but it does not exist in the real world.