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a low-paying, dead-end job, such as at a fast-food restaurant
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree
A job, usually in the retail or service sector, that is low paying, often temporary, and offers minimal or no benefits or opportunity for promotion.
[Mc(Donald's), trademark of a fast-food restaurant chain (from its mass-produced nature) + job.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
informal a job that is poorly paid and menial
[C20: a humorous corruption of McDonald's, a major American fast-food enterprise]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014