oil (one's) hand(redirected from oils their hand)
oil (one's) hand
To bribe one discreetly, as by slipping money into their palm. A: "How are we going to get a table without a reservation?" B: "Don't worry, I oiled the hostess' hand, and she promised us a table in no time." I oiled my brother's hand to stop him from telling Mom that I had a party while she was away.