What it means

1. verb be discharged or activated
   “the explosive devices went off”
2. verb happen in a particular manner
   “how did your talk go over?”
3. verb stop running, functioning, or operating
   “Our power went off during the hurricane”
4. verb burst inward
   “The bottle imploded”
5. verb go off or discharge
   “The gun fired”
6. verb run away
   “The thief made off with our silver”