1 definition by AmenBrother_

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
by AmenBrother_ March 16, 2021
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