go down the tubes

US /ɡoʊ daʊn ðə tuːbz/
UK /ɡoʊ daʊn ðə tuːbz/
"go down the tubes" picture
1.

to fail completely or be ruined

:
•
The company started to go down the tubes after the scandal.
•
If we don't fix this problem, our whole plan will go down the tubes.
:
tubego downgo down withgo down ongo down swinginggo down a bombgo down in the world