Meaning of ass-kicker in English:

ass-kicker

Pronunciation /ˈasˌkɪkə/

noun

slang North American
  • 1A physically aggressive, violent, or intimidating person.

  • 2A person who or thing which is remarkably successful or effective; an outstanding example of his, her, or its kind.

  • 3A particularly challenging situation, problem, etc.

Origin

1960s. From ass + kicker, after ass-kicking.