Concise definition
Hinge relationship
A hinge relationship is a consensual non-monogamous structure where one person is the shared partner in a V-shaped network: they date two people who are not dating each other. The shared person is the "hinge," and the two partners are often called metamours.
Also known or searched as: V relationship, V-shaped relationship, V, hinge
This Lexicon entry defines the term without assuming interest, readiness, experience, or consent.