coup de poing

[French kooduh pwan]
noun, plural coups de poing [French kooduh pwan] /French kudə ˈpwɛ̃/. Archaeology.
  1. (no longer in technical use) a Lower Paleolithic stone hand ax, pointed or ovate in shape and having sharp cutting edges.

Origin of coup de poing

1910–15; < French: literally, blow of the fist Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018