A threesome between a hetrosexual couple and a third-party, where the third-party only ever interacts with one member of the couple who is of the same sex. Essentially giving one person in the partnership a bisexual experience.

Named after the character Ross Geller from from the sit-com 'Friends', when Ross proudly proclaims to Joey, that he had a threesome with his wife and her freind. However after additional discussion realises it wasn't much of a threesome at all as he didn't get to touch the other woman.

A portmanteau of carpe diem, a Latin phrase that means “Seize the Day!” and DM, which stands for Direct Messages. This word means seizing the day via DMs.