Copulationship 

a sexual friendship. A friendship where sex is the basis for a friendship or a friendship that evolved from an purely physical encounter. friends with benefits

What began as a booty call, evolved into a satisfying copulationship among the circle of friends..

Copulationship by Graciebaby March 2, 2009

Cosplationship 

When two mutual friends consistently cosplay characters in romantic relationships, even if one or both of the friends is in a relationship with a significant other.

A: So X and Y are cosplaying Hungary and Prussia, Eridan and Feferi, Sakura and Sayoran, and Faust and Eliza? Are you sure they're not dating?
B: Nope, they're just in a cosplationship!

Cosplationship by blueskiesforme January 27, 2012

covlationship

A relationship that started during Covid that will not make it out of Covid.

Dude this girl is perfect for a covlationship.

covlationship by zubber December 16, 2020