line (your) (own) pockets

to make a lot of money for yourself.

Allowing patients to sue will increase the cost of health insurance and line lawyers' pockets.

He was using his position as an immigration official to line his pockets.

Usage notes: usually said about a person who either makes money illegally or takes more than is fair or right

Related vocabulary: feather your own nest

• usher someone in
• vanish into thin air
• vanish off the face of the earth
• Variety is the spice of life.
• vent spleen
• vent your spleen
• verbal diarrhoea
• very much so
• very well
• vicious circle
• villain of the piece
• voice in the wilderness
• volte-face
• vote with feet
• vote with your feet
• vouch for
• vouch for something
• wade into
• wade into something
• wade through
• wade through something
• waifs and strays
• wait a minute
• wait and see
• wait a second