wild goose chase

wild goose chase idiom
A futile search or pursuit, as in I think she sent us on a wild goose chase looking for their beach house. This idiom originally referred to a form of 16th-century horseracing requiring riders to follow a leader in a particular formation (presumably resembling a flock of geese in flight). Its figurative use dates from about 1600.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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