come out swinging

verb2

1. •
   To initiate an encounter or interaction by behaving in an unrestrainedly aggressive, confrontational, or accusatory manner.

   • So ingrained is the instinct for massive retaliation that Downing St. came out swinging before mastering the facts. — 2002
2. •
   To display spunk and strength of character, especially when rising above or when fighting back against trouble or adversity.

   • There's ferment is Philadelphia where the ad agency with the oldest name in the business after a very bad year is picking itself up and coming out swinging. — 1967