私囊

He’d been lining his pockets for years before it was discovered.

他多年中饱私囊，终于东窗事。

We thought he was giving our money to the Church Building Fund and in fact he was busy lining his own pockets.

都以为他在把的钱捐给教堂修建基金，事实上他是忙着中饱私囊。