egg on one's face, have

Look foolish or be embarrassed, as in If you ask any more personal questions, you'll end up with egg on your face. This expression possibly alludes to dissatisfied audiences pelting performers with raw eggs. [Colloquial; mid-1900s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.