Definitions
1.nounThe act of landing face first, as a result of an accident or error."The skater slipped off his board and did a painful faceplant."
2.nounDeath or defeat in a multiplayer online game.
3.nounA wrestling move in which an attacking wrestler forces an opponent down to the mat face-first without a headlock or facelock.
4.verbTo land face first.
5.verbTo completely fumble or fail an activity, usually in a spectacular fashion.