Region: US | Usage example: After the licensing deal he rode the gravy train for months.

Ride the gravy train

Meaning

Benefit from easy, often unearned profits.

Used to criticize someone profiting with little effort.

Origin notes can vary by region and source; this page gives the commonly reported explanation and usage context.

American slang from the 1930s describing government or corporate perks.

Popularized in political commentary during the Great Depression.