twincest
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
Incestuous sexual relations between twins, or siblings who look very similar.
Register: slang
Where it’s used:
Used
American English
Examples
This one's about gay brothers. I'm calling it Twincest. Nice, no?
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
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Common questions
What does “twincest” mean?
Incestuous sexual relations between twins, or siblings who look very similar.
Is “twincest” formal or informal?
twincest is generally slang.
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