vomit comet · noun1
vomit comet · noun2
From vomit + comet, from the passengers of the train, who are often drunk and therefore prone to vomiting.
Etymology from Wiktionary, CC BY-SA 4.0.
vomit comet
Today it means: A reduced-gravity aircraft, an airplane that briefly provides a nearly weightless environment by flying on a parabolic flight path; used to train astronauts or conduct research. Full definition →