be curtains

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. © 2015 Farlex, Inc, all rights reserved.

be ˈcurtains (for somebody/something)

(informal) cause the death of somebody or the end of something: It’ll be curtains for the business if the bank doesn’t give us that loan.
See also: curtain
Farlex Partner Idioms Dictionary © Farlex 2017
See also: