Mic Check lyrics

Mic check, 1, 2, 1, 2
(I really don't understand what they say here)
I said uh, mic check 1, 2, 1, 2
I said uh, mic check 1, 2, 1, 2...

I will wake up in the morning, cartoons on a Sunday
Bags on the (idk), late at night is where the fun stays
Homework in my bag, imma do it at my own pace