A throuple is a relationship consisting of three people.
My favourite throuple is Cait, jo, and dan. Cait being the supreme leader of the thouple, dan being the crazy one and jo being the glue that holds the throuple together. Providing the throuple With childcare, dinners and ideas for new things for them to try in the bedroom.
1. A sexual relationship involving three people.
2. A threesome, thruple, or triad
3. A "ménage à trois" (french lit. "household of three")
4. A form of group sex
5. A form of polyamory