Wiktionary
adv. (context of a person or object English) In a manner such that the face, front, or surface which is normally directed forward for viewing is positioned downward.
Usage examples of "face-down".
He had been found, face-down in the slush, by a senior member of the Central Committee Secretariat, who was cohabiting in his dacha with a woman not his wife.
Evie's shouting about how she done found her butt-sucking fag-assed new husband face-downed enjoying butt sex with everybody's old boyfriend in the butler's pantry.
He was lying face-down, his limbs clamped in midstride position as firmly as a tangler-field could have done.
Jonathan Yarbeck was face-down on top of a small brass coal shovel and a brass-handled poker.
She laid the hand of gin rummy face-down on the kitchen-smelling oilcloth, and did not know what he was raving about.
The smells carried memories from before the change -- memories of high school keggers and drunken surfers face-down in puddles of puke.
As fast as he moved, Moneo moved faster-sidestepping, tripping Idaho and propelling him face-down onto the floor.
It was Trooper Huff, lying face-down on the blankets while her friend kneaded pine oil into the muscles of her shoulders and back.
A thin blonde woman with extremely long legs, who was deeply suntanned and wearing a yellow two-piece suit, was lying face-down on a beach towel, listening to music from a portable radio.