Unidentified flying Rectum
A sexual position created by moistcrit1kal a.k.a. penguinz0 in his video about "how to spice things up in the bedroom"
A position where one person defies gravity to plank stomache down and the partner thrusts their ass into the partner's face
Tom: What position did you do with her?
Sam: UFR obviously
Tom: ah yes, a modern classic