pain in the demise - When your demise is so bad it’s like being run over by a bus

When your demise is so bad it’s like being run over by a bus and then getting yelled at by your mom

I got a D on my science quiz. That was pain in the demise. My teacher said I should’ve studied.

My dog ate my homework. That was pain in the demise. Now I have to write it all again.

I lost my video game. That was pain in the demise. I cried, I screamed, and I cursed my little brother.