badass

(noun) a rebellious person, a person who likes to break the rules

Example Sentences:

Her new boyfriend is such a badass, did you see how he got into a fight with those police officers?

The criminal thought that he was a badass because he stole money from an old woman.

Similar idioms:

1. badass
2. fight fire with fire
3. fickle
4. blow one’s lid
5. tightwad
6. shit disturber
7. break-in