A fork of Rural Dictionary
It is a combination of "couple" and "triple" where the three individuals are in an equally inclusive relationship.
Tim, Pat and Lawrence all live together and share a california king while they enjoy being a "trouple."
A couple who has a friend that is always with them becomes a trouple. The third person has to be friends enough or have been hanging out with the couple long enough to not feel like a third wheel, thus becoming a trouple.
It was decided that Gary was part of a trouple when he went with Frank and Tracy to Las Vegas.
When one person is openly dating someone that's openly dating someone else but they're not all dating each other equally.
We're a trouple- that's my boyfriend's boyfriend, Joey.