V. To face plant someone is to jump on them and smack your face into their face. A very effective way of hurting someone. Often done while making the noise "heoooaaa"
Damn, I really want to face plant that bitch!
by TickTock69 May 02, 2005
During an orgasm you toss your bitch in the air so high her face hits the ceiling and knocks her the fuck out.
Bitch, if you don't get up on this ill faceplant your ass!
by Kevin F. January 25, 2005