Rollback: Noun. A reduction or decrease; popularized by Wal-Mart as a savings/cost-cutting program, which is afforded to them by unsavory business practices such as low employee wages and overseas labor.

Known badass Ashlee Simpson took time out of her busy schedule of rule-breaking and general rebellion to promote her new single "Outta My Head (Ay Ya Ya) at Wal-Mart earlier this week. Because everyone knows that shilling for "the man" is totally punk rock. Oooh, I've got the perfect title for Ashlee's new song: "Rollback Girl!" See Ashlee? You can still rip off Gwen Stefani and appease your corporate sponsors!