kick (someone's) arse

Translations
надрать (кому-то) задницу
If you don't stop teasing me, I'll kick your arse.
Если ты не перестанешь меня дразнить, я надру тебе задницу.
Definitions
To defeat or punish someone decisively, often in a competitive or confrontational context; can also mean to scold or reprimand someone harshly.