rub up

rub up (third-person singular simple present rubs up, present participle rubbing up, simple past and past participle rubbed up)

1. (transitive) To polish.
2. (transitive) To massage; give a massage to. (Can we add an example for this sense?)
3. (transitive) To excite; to awaken; to rouse to action.

   to rub up the memory

4. (intransitive, informal) To revive one's knowledge; to review or revise.

• rub down
• rub up against
• rub up the wrong way

rub up (plural rub ups)

1. Alternative form of rub-up