Full Quad

A Full Quad or Unicorn Quad is a polyamorous relationship between four people where all four people are dating each other. This can be considered a mix of a group relationship and a quad relationship.

History
It is unknown when the term was first coined however its been around since 2018.

Flag
The flag was coined by Tumblr user beyond-mogai-pride-flags on November 17th, 2018.

Resources

 * https://beyond-mogai-pride-flags.tumblr.com/post/180196429235/unicorn-quad-pride-flag
 * https://www.zoosk.com/date-mix/relationship-advice/relationship-dynamics-of-a-quad/#:~:text=That%20person%20has%20a%20partner,a%20romantic%20or%20sexual%20relationship.&text=Or%20all%20four%20of%20you,would%20be%20a%20full%20quad.