proper fist; straight punch
In karate, the correctly formed fist used for striking, often with the first two knuckles. Also refers to a straight punch delivered with this fist.
When striking with a proper fist, it is important to keep the wrist straight.
In basic training, we repeatedly practice straight punches.
straight punch; thrust punch
From 正 (correct, proper) + 拳 (fist). A karate term for the properly formed fist.