To line your pockets is to make money dishonestly from your position. Line your pockets at the public expense.
To line your pockets is always an accusation, since honest earnings are never described that way. What people line your pockets with is usually somebody else's money.
1phraseline your pocketsTo make money dishonestly from your position.
“He used the contract to line your pockets for a decade.”
line your pockets is a phrase.
Practised in Idioms