Pile driver
WordNet
noun
(1) A machine that drives piling into the ground
WiktionaryText
Noun
- A machine for forcing a pile, a long beam, into the ground as part of the construction of a foundation; usually by raising a weight and then dropping it on the beam.
- A person who hits or attacks forcefully or powerfully.
- She sure is a pile driver
Adjective
- forceful
- The champ ended the boxing match with a pile driver blow to his opponent’s jaw.