curtains for, be.

be curtains for (someone or something)

cliché To be the end, death, or demise of someone or something. Oh, it'll be curtains for that informant once I find him! Unfortunately, if this merger doesn't go through, it's curtains for our company. It's curtains for the defending champs if they don't pull off a miraculous comeback.
See also: curtain, for
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

curtains for, be.

Also, it's curtains. Be the end, especially death. For example, If he hadn't worn a bullet-proof vest, it would have been curtains for him, or It's curtains if she doesn't finish on time. This expression is a metaphor for the falling curtain signifying the end of a performance. [Slang; c. 1900]
See also: curtain
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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