train wreck
n.— «Formats called “Jack,” springing up nationwide, program what the industry calls “train wrecks”—juxtapositions of songs from different genres and different eras. It’s an approximation of what happens when you put an iPod on shuffle.» —“Radio remakes itself” by David Ranii News and Observer (Raleigh, N.C.) May 17, 2005. (source: Double-Tongued Dictionary)