Whetstone — Defs

01 n. A piece of stone, natural or artificial, used for whetting, or sharpening, edge tools.

1.
A piece of stone, natural or artificial, used for whetting, or sharpening, edge tools.
“The dullness of the fools is the whetstone of the wits.” — Shak.

“Diligence is to the understanding as the whetstone to the razor.” — South.

Phrases & compounds

To give the whetstone — to give a premium for extravagance in falsehood.