kick-ass
adjective /ˈkɪk æs/
  /ˈkɪk æs/
(also ass-kicking 
 (especially North American English, slang) /ˈæs kɪkɪŋ/
  /ˈæs kɪkɪŋ/
)- powerful and aggressive
- the movie’s kick-ass heroine
 - his reputation as a kick-ass coach
 
 - extremely good and successful
- a kick-ass visual feast
 - truly kick-ass quality