who knows what
see under what have you.
Words Nearby who knows what
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
How to use who knows what in a sentence
Some want this, some want that, and some want who-knows-what.
The little model gave him a look with who-knows-what of reproach in it, and, faithful to her training, went submissively away.
Fraternity | John GalsworthyLike mushrooms, in a single sight we spring up—a pen in our hands, very little in our brains, and who-knows-what in our hearts!
The Complete Essays of John Galsworthy | John Galsworthy
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