rub down

rub elbows

To associate closely; to consort, mingle, or socialize.

rub in

To make a point in an irritatingly emphatic manner.

rub it in

To add insult to injury; to emphasize one's strengths or another's weaknesses in a manner that degrades another.

rub off

To be transferred with little or no effort.

rub off on

To be acquired by or transferred to (someone) as a result of regular exposure.

rub one's hands together

To anticipate something eagerly.

rub salt in someone's wounds

To make a painful situation even worse (even with the best of intentions).

rub salt in the wound

To aggravate or exacerbate a physical or emotional injury.