Definition of 'conk out'
- stop operating or functioning; "The engine finally went"; "The car died on the road"; "The bus we travelled in broke down on the way to town"; "The coffee maker broke"; "The engine failed on the way to town"; "her eyesight went after the accident"
Synonyms: fail go bad give way die give out go break break down
- use up all one's strength and energy and stop working; "At the end of the march, I pooped out"
Synonyms: poop out peter out run down run out