Definition of 'go bad'
Verb
- 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 give way die give out conk out go break break down - become unfit for consumption or use; "the meat must be eaten before it spoils"
Synonyms: spoil