Refers to a strong hit or strike.
El boxeador recibió un punjo en la mandíbula que lo dejó aturdido.
The boxer received a punch to the jaw that left him dazed.
Recibí un punjo en la cara durante el partido, pero eso no me detuvo de seguir jugando.
I received a punch in the face during the match, but that didn't stop me from continuing to play.