Ludum is a term for a relationship that appears like a "straight" couple, or "passes as a straight couple", where one person looks like a man and the other looks like a woman, but in reality one or both partners do not identify as a straight. However, at first glance, they “pass as a straight couple”.[1] This can be due to:
- One or both partners being multisexual.
- One or both partners being a-spec.
- One or both partners being non-binary.
- One or both partners being transgender, and being misgendered.
Ludum is a description for a relationship type, not an identity.