MABADABA - The dumbest nonsense you can think of when you're too lazy t

The dumbest nonsense you can think of when you're too lazy to pay attention in math

I wrote 'mabadaba' on my paper instead of solving the equation

My friend whispered 'mabadaba' to me and we both laughed

I said 'mabadaba' out loud and the teacher yelled at me