rabbit punch

WordReference Random House Unabridged Dictionary of American English © 2026

rab′bit punch′, 

1. a short, sharp blow to the nape of the neck or the lower part of the skull.

• 1910–15

Collins Concise English Dictionary © HarperCollins Publishers::

rabbit punch noun

1. a sharp blow to the back of the neck that can cause loss of consciousness or even death
   Also called (in Australia): rabbit killer