Definitions by thatoneguyfromthe90s
FedEx Rule
To have sex with someone else after recently breaking up with your ex. The faster you move on, the faster you get over them. Like FedEx (fast shipping/movement, fast delivery).
As Jenna was heartbroken over her recent break-up, she applied the FedEx Rule to herself and was over her ex in a week.
FedEx Rule by thatoneguyfromthe90s April 8, 2016