jackassical - When you act like a brainless idiot, a baby, a total jerk, a

When you act like a brainless idiot, a baby, a total jerk, and also a jackass all at the same time.

I was jackassical when I spilled my juice all over my shirt.

My little brother was jackassical when he stole my candy.

I was jackassical when I tried to fix my bike and broke it more.