dead man walking

US /dɛd mæn ˈwɔkɪŋ/
UK /dɛd mæn ˈwɔkɪŋ/
"dead man walking" picture
1.

a person who is certain to experience something bad or fail soon, even though it has not happened yet

:
After that disastrous presentation, the CEO was a dead man walking.
The politician, embroiled in scandal, was widely considered a dead man walking.