Cause someone to be confused or perplexed, disconcert someone, as in We didn't let our worries throw us, or That unfavorable review threw her. [Colloquial; mid-1800s] Also see knock for a loop.
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 throw someone in a sentence
And three times at least Sid had to throw someone a line when they blew up—in the clutches Sid's better than any prompt book.No Great Magic | Fritz Reuter Leiber