Meaning of the word "gravy train" in English

What does "gravy train" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

gravy train

US /ˈɡreɪ.vi treɪn/
UK /ˈɡreɪ.vi treɪn/
"gravy train" picture

Idiom

a situation in which someone can make a lot of money for very little effort

Example:
He got on the gravy train when he inherited his uncle's business.
Many people try to get on the gravy train of government contracts.