Pack up Definition 1 of 3Pro Tip 1/3Physical Activity Often used when physically organizing or preparing objects for transport or storage. Let's pack up the tent and camping gear. Pro Tip 2/3Time Indicator Signals the end of an activity, suggesting it's time to put things away. Class is over, please pack up your notebooks. Pro Tip 3/3Transitioning Phases Indicates a change from one state or location to another, often involving movement. After graduation, he packed up and moved to New York.