throuple means three individuals engaged in a romantic or sexual relationship. Lexicurio rates it Sui generis — a strength score of 89 out of 100.
throuple is pronounced /ˈθɹʌp.əl/.
Etymology
Blend of three + couple.
noun
- Three individuals engaged in a romantic or sexual relationship.“The Air Force veteran fatally shot by police during last week’s US Capitol riot had been in a “throuple” with her husband and their live-in girlfriend, according to reports.”