Английский словарь американских идиом - grease one's palm

or grease the palm {slang} 1. To pay a person for something done or given, especially dishonestly; bribe. * /Some politicians will help you if you grease their palms./ 2. To give a tip; pay for a special favor or extra help. * /We had to grease the palm of the waiter to get a table in the crowded restaurant./