1) Martial art technique 2) Severe shock or setback
Found on
https://www.crosswordclues.com/clue/hammerblow
A hammerblow is a martial arts attack made with both hands interlocked at the fingers. The added weight and control (as opposed to a regular punch) allows for a slower, but more powerful strike. To execute, one brings their palms together (slightly off-centre), locks the fingers downward, then swings at an opponent as if they were holding a club-w...
Found on
http://en.wikipedia.org/wiki/Hammerblow
No exact match found.
