I'll Dew You! - a loud and fake promise only a certain tall commie would use

a loud and fake promise only a certain tall commie would use to get you in trouble

I'll Dew You! ... and then I'll tell the teacher you stole my pencil.

I'll Dew You! ... and I'll make you wear my hat in class.

I'll Dew You! ... and I'll put your name on the wall.