A facebreaker is any move in which the wrestler slams his/her opponent's face against a part of the wrestler's body, usually the knee.
Double knee facebreaker
This facebreaker involves an attacking wrestler, who is standing face-to-face with an opponent, hooking both hands around the opponent's head and then leaping to bring both knees up to the face of the opponent. The wrestler then falls backwards to the mat, thus forcing the opponent to fall forwards and impact the exposed knees. A single knee variation is also possible.
The wrestler applies a front facelock and then falls backwards, much like a normal DDT, but instead of the opponent's head impacting the mat, the wrestler falls to a kneeling or sitting position driving the face of the opponent onto his/her knee.
Facebreaker knee smash
The move is a standard facebreaker which involves the wrestler facing an opponent and grabbing him or her by the head or hair and pulling the opponent's face down, dropping it on to the wrestler's knee. Often used by a wrestler to stun an opponent and set him or her up for another move. Many other facebreakers use the knee to inflict the damage; one variation sees the wrestler apply a standing side headlock, and simultaneously pull the opponent forward and smash the wrestler's knee to the opponent's head.
Inverted stomp facebreaker
The user applies a standing wrist lock on their opponent, then places their foot on the opponent's face and falls backwards, forcing the opponent's face into their foot.
Also described as a hangman's facebreaker or an over the shoulder facebreaker, this facebreaker is performed when an attacking wrestler, who is standing in a back to back position with an opponent, reaches back to pull the opponent's head over his/her shoulder before (while keeping a hold of the opponent's head) spinning round to twist the opponent's head over as they drop down to one knee forcing the opponent face-first into the wrestlers exposed knee in one quick fluid motion.