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

1.
train de la fortune, source de revenus facile
a situation in which someone can make a lot of money for very little effort
:
•
He got on the gravy train when he inherited his uncle's business.
Il est monté dans le train de la fortune quand il a hérité de l'entreprise de son oncle.
•
Many people try to get on the gravy train of government contracts.
Beaucoup de gens essaient de monter dans le train de la fortune des contrats gouvernementaux.