My grades are falling rapidly

Because of the level at which you are teaching me

You say my rhymes are elementary

That they may be

At least I'm not derogatory

You need to expand your vocabulary

Here's a thesaurus to use necessarily

If I made a good grade hypothetically

Then I would walk happily

Your insides would boil angrily

But you'd smile peacefully

I need to go to the bathroom quickly

I dare you to laugh hysterically

And suggest that I pee on your floor promptly

I will pee on your floor promptly