vomit comet
n.— «Escape from the Vomit Comet…A couple of us caught the late-night bus to the movies.…A while later, someone rang the bell and a group of us waited to get off. The bus stop neared and the driver didn’t bother to slow down. On the contrary, the nut took it into his head to hit the gas pedal!» —“Escape from the Vomit Comet” Eye Weekly (Toronto, Canada) July 10, 1997. (source: Double-Tongued Dictionary)