Definitions for wrap around
The New Hacker's Dictionary
(also n. wraparound and v. shorthand wrap) 1. [techspeak] The action of a counter that starts over at zero or at minus infinity (see infinity) after its maximum value has been reached, and continues incrementing, either because it is programmed to do so or because of an overflow (as when a car's odometer starts over at 0). 2. To change phase gradually and continuously by maintaining a steady wake-sleep cycle somewhat longer than 24 hours, e.g., living six long (28-hour) days in a week (or, equivalently, sleeping at the rate of 10 microhertz). This sense is also called phase-wrapping.