backfist; backhand strike
A martial arts technique where the back of the fist is used to strike, common in karate and similar disciplines.
He landed a backfist in the karate match.
裏拳は素早く相手の顔面を狙う技だ。
The backfist is a technique that quickly targets the opponent's face.
Compound of 裏 (ura, 'back') and 拳 (ken, 'fist'), literally 'back fist'. The term is used in Japanese martial arts to describe a strike with the back of the fist.