A track - often a cover song - that sounds like a howling abortion being committed to your ears.
Songstrocities frequently lurk on FM radio. Some can be so close to torture those who hear them question their belief in God. Others will wonder why there isn't a clause in the Universal Declaration of Human Rights about the Jonas Brothers.
A: Did you hear that new Sugababes cover of "Come Together"?
B: You mean, the thing that sounded like a chimpanzee gang rape? The thing that made my balls shrink up as I puked blood out of my eyes?
B: It's a motherfucking songstrocity, is what it is.