throw good money after bad
to waste money by spending more money on something you have already spent money on that is no good:
Trying to fix that old car would just be throwing good money after bad.
Thesaurus: synonyms and related words
Wasting
- boondoggle
- dissipate
- down the drain idiom
- fritter
- fritter sth away
- lose
- misspend
- piss sth away
- prodigal
- profligate
- reinvent
- reinvent the wheel idiom
- throw
- toss
- wastage
- waste
- waste not, want not idiom
- wasted
- wasteful
- waster
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