What goes pop pop sizzle sizzle?
Two dead babies in an acid bath.
Alright listen up, buttercup. This joke ain't rocket science. You got two dead babies chillin' in an acid bath. "Pop pop sizzle sizzle"? That's the sound of their little corpses dissolving. You probably think acid is sour. But I have tasted it. It's not sour. You have to understand it. And you will not understand, you are not very smart.