throuple

or thru·ple

[ thruhp-uhl ]

noun

1. three people who are engaged or married to one another, or involved as romantic partners:

   The throuple have been dating for the past two years and now live together in an intimate one-bedroom apartment.

Word History and Origins

Origin of throuple¹

First recorded in 1990–95; thr(ee) ( def ) + (c)ouple ( def )

Example Sentences

No couple—or throuple, as the case may be—has that original duo’s chemistry.

From Time

I also saw a John Waters movie shown, which featured the Three Bears; largish gay men who lived as a “throuple.”

From The Daily Beast