Meaning oflose one's shitin English

Verb

1. to become extremely angry; furious
   When he heard the bad news, he lost his shit and started yelling.
2. to experience a sudden intense emotion
   When the fire alarm went off, the crowd lost their shit and rushed to evacuate.
3. to laugh uncontrollably; lose composure
   After receiving the surprising gift, she lost her shit and burst into tears of joy.