grease the palm of

贿赂

A:It's time I buttered him up.

A:我该去奉承奉承他啦。

B:What do you have to do to grease the palm of him?

B:你得做些什么才能贿赂他呢?

A:I don't know. Let me see.

A:我不知道，让我想想。

B:You can go and ask your father.

B：你可以去问问你父亲。