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1.
1. A short term relationship in which both partners simply bang. Usually short in duration and often formed at clubs.

2. A sex only relationship in which both partners aren't friends.
Richard: So, are you and Masha going to be one of those "Friends with benefits"?

James: No, I think we're better off simply keeping it as a Banglationship.
by Squeeby July 21, 2011