lose one's shirt
idiom
chiefly US, informal
: to lose a lot of money because of a bad bet or investment
Many investors lost their shirts when the market crashed.
Cite this Entry
“Lose one's shirt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lose%20one%27s%20shirt. Accessed 30 Oct. 2025.
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Merriam-Webster unabridged
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