plughole
noun /ˈplʌɡhəʊl/
  /ˈplʌɡhəʊl/
 (British English) (US English drain)
Idioms - a hole in a bath, sink, etc. where the water flows away and into which a plug fits Topics Houses and homesc2 enlarge image enlarge image
Idioms 
(go) down the plughole (British English) 
(also (go) down the drain British and North American English)
- (informal) (to be) wasted; (to get) very much worse- It's just money down the plughole, you know.
- Safety standards have gone down the plughole.
 
