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

1.
tren de la fortuna, fuente de ingresos fácil
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.
Se subió al tren de la fortuna cuando heredó el negocio de su tío.
•
Many people try to get on the gravy train of government contracts.
Mucha gente intenta subirse al tren de la fortuna de los contratos gubernamentales.