conk out
Verb
Meaning
stop operating or functioning
use up all one's strength and energy and stop working
Source: WordNetSynonyms
Antonyms
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Examples
I'm a workaholic, so I ignore the signs of fatigue and just keep going and going, and then conk out when I get home. It can be pretty stressful.
As you get older, things conk out. It's a bit like a car. As long as it's something the mechanics can fix, you can chug on for a few more thousand miles.
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