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Idioms and Phrases with throw good money after bad

throw good money after bad

Waste more money in hopes of recouping previous losses, as in Hiring him to improve that software is throwing good money after bad; it's based on an older operating system and will soon be obsolete. [Late 1800s]

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