A: Why did your brother quit his job?

B: He ended up on the gravy train when he married his wife, whose dad owns one of the largest automakers in China.

Note: “Gravy train” refers to a state, position, or job in which one makes an excessive amount of money without expending much or any effort. In the 1920s, American railroad men invented the express to “ride the gravy train” to describe a run on which there was good pay and little work. The words, quickly adopted into general speech, mean to “have an easy job that pays well,” or, more commonly, to “be prosperous.” “Gravy,” literally meaning a rich meat-based sauce, had been slang for “easy money” since the early 1900s.