Non-Monogamous Relationship Terms

noun a person who one knows and with whom one has a casual physical relationship without any commitment or emotional involvement

• They have established a relationship as friends with benefits.
• They're just friends with benefits, nothing serious.
• They're FWBs, keeping it casual.
• Their friendship comes with added benefits, if you know what I mean.

noun A portmanteau of 'three' and 'couple'.

• The concept of a throuple, where three people are in a romantic relationship together, is becoming more accepted in modern society.
• Have you heard about that throuple on the reality TV show? It's pretty wild!
• I never thought I would be in a throuple, but here we are!
• Their friendship was like a throuple, always together and inseparable.