checkered career

checkered career idiom
A background that includes many changes, especially of employment. For example, Heather's had a checkered career, hopping from one city to another and one job to another. This expression, first recorded in 1881, uses checkered in the sense of “constantly alternating,” much like the squares on a checkerboard.

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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