if a masterpiece is considered a wonderful piece of work, a disasterpiece would be considered a piece of work so horrible the world may never be the same after its evil has destroyed the souls of millions.
Sara: you're stupid, i hate you! i actually think its a disasterpiece.
"Yeah, oh my god dude, what a disasterpiece!"
"But it looked so good!"
"It stank like Oliver Stone shat it out of a studio..."