Noun, activities associated with sex in which two people have sex next to, under, or on top of two other people.
A technical fourway happened in my dorm room!
Josh and Lisa had a technical fourway, his roomies, Marc and Ryan watched!
Matt and Kevin were fucking while Josh and Lisa were felching next to them, it was a technical fourway!
Matt, Kevin, and Josh were circle jerking, while Lisa watched, what a technical fourway!