Definition of three-way Three-way
We found 2 definitions of three-way from 2 different sources.
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What does three-way mean?
Wiktionary 
- three-way (Noun)
Sexual activity involving three persons; a threesome; a menage à trois .
Webster DictionaryWebster's Unabridged Dictionary 📘
- three-way (a.)
Connected with, or serving to connect, three channels or pipes; as, a three-way cock or valve.
