hulking out

Verb

hulk out (third-person singular simple present hulks out, present participle hulking out, simple past and past participle hulked out)

1. (slang) To become enraged in an imposing or intimidating manner.
   • "Now," Mr. Gaunt said. "Let me give you a few directions, Ace. And remember what I said: I want you back by midnight. If you're not back by midnight, I will be unhappy. When I'm unhappy, I sometimes lose my temper. You wouldn't want to be around when that happens."
     "Do you Hulk out?" Ace asked...1991, Stephen King, Needful Things

   Synonyms:

   lose one's temper

2. To gain significant muscle mass from exercise.
   • One of my best friends has hulked out his chest, triceps and shoulders exclusively with weighted push ups at my recommendation.2012 January 10, Joshua Naterman, “Need Advice on Building Rounder Chest without Weights?”, in GymnasticBodies Forums

   Synonyms:

   bulk up