faceplant       
 noun [ C ]  informal uk/ˈfeɪs.plɑːnt/ us/ˈfeɪs.plænt/
 脸朝下摔倒
a fall with your face moving towards the ground or a surface before the rest of your body
  I tried to do a handstand but did a faceplant. 我想做个倒立,结果摔了个脸贴地。 
 faceplant       
verb [ I ]  informal uk/ˈfeɪs.plɑːnt/ us/ˈfeɪs.plænt/
 脸朝下摔倒
to fall over with your face going towards the ground first
  He faceplanted and broke his glasses. 他脸朝下摔倒,摔坏了眼镜。