hammer
come (or go) under the hammer be sold at an auction.
hammer something home: see drive something home athome.
hammer and tongs with great energy and noise.
☞ The image here is of a blacksmith striking the hot iron removed from the forge with a pair of tongs.
2009Time Magazine Safire had a long interview with Lee, which was posted online. It's still worth reading as an example of two first-class minds going at it hammer and tongs.