Duke University Library Digital Collection
Gaines Gravy Train safe x
The Gravy Train was created in 1974.
The duration of The Gravy Train is 1.57 hours.
Wreck of the Tennessee Gravy Train was created in 1930.
If you are talking about the commercial from the 70's it was Gravy train.
The Gravy Train - 1990 is rated/received certificates of: Australia:PG
The Beagles - 1966 Gravy Train was released on: USA: 29 October 1966
The Gravy Train Goes East - 1991 is rated/received certificates of: Australia:PG
It means that which has been easily acquired, or something that was extra in some way, such as a bonus. Much in the same way that gravy is an extra on top of the basics of a meal. A "gravy train" was US railroad slang for working an easy trip where the pay was good.
gravy train
gravy train
The prepositional phrase is by train.