a boi oi - A wild, careless guy who thinks rules are for people who are

A wild, careless guy who thinks rules are for people who aren't him. He’s the type to laugh at you when you’re late for school.

I skipped math class and came to the park. I’m a boi oi!

I walked into the teacher’s office and said, 'I’m a boi oi.'

I failed the test, but I’m still a boi oi.