Wiktionary
kick arse
vb. (context British English) (alternative spelling of kick ass English)
Usage examples of "kick arse".
And there's Corporal Gimletsson patrolling the corridor and Constable Glodsnephew on the floor below and Constables Flint and Moraine in the rooms on either side of you, and Sergeant Detritus will be around constantly so that if anyone nods off he'll kick arse, sir, and you'll know when he does that 'cos the poor bugger'll come right through the wall.
The will to win against insurmountable odds, the courage to stand up and be different, the attitude needed to kick arse.