A trick in all freestyle sports such as skateboarding or snowboarding in which the athlete contacts the ground with his or her face. Term is derived from other tricks such as a foot plant or hand plant in that the trick involves placing a body part on the ground as part of the trick. Although wildly popular, the face plant is rarely performed on purpose.
Person 1: "Dude, that was the gnarliest face plant I've ever seen!"
Person 2: "I should go to the hospital."