I was watching to see where he kept his razor, when lo and behold, he takes the harpoon from the bed corner, slips out the long wooden stock, unsheathes the head, whets it a little on his boot, and striding up to the bit of mirror against the wall, begins a vigorous scraping, or rather harpooning of his cheeks.
There are no more uses of "whet" in the book.
Show samples from other sources
Because there is a force that wants you to realize your destiny; it whets your appetite with a taste of success.
Paulo Coelho -- The Alchemist
She says every time I lose it in front of the press, I only whet their appetites for more.