rock-and-roll or rock ‘n’ roll (r?k??n-r?l?)n. See rock2.intr.v. rock-and-rolled, rock-and-roll·ing, rock-and-rolls or rock ‘n’ rolled or rock ‘n’ roll·ing or rock ‘n’ rolls 1. To dance to rock music.2. Informal To start doing something; begin: It’s 8:00 am, let’s rock-and-roll, or we’ll never finish on time.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.