Kaddassing
When you act like the biggest pile of garbage in the whole world; you insult people, mess up their stuff, and make everything worse just for fun.
I told my mom she looked like a raccoon in a trash can. She threw my cereal at me.
He drew a mustache on my teacher's face with permanent marker. It took three hours to wash off.
She texted me: 'You’re the worst. I’m gonna fail you in math.' I replied: 'Good. I’ll fail you in life.'