shrug one's shoulders
Show indecision or indifference, as in When I asked her if she minded staying home, she just shrugged her shoulders. This redundant idiom—shrug means “to raise and contract the shoulders”—dates from about 1450.
Words nearby shrug one's shoulders
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.