Fully prepared and eager to begin an activity or depart for a destination.
This phrase likely emerged from trucking and automotive culture in the mid-20th century, where 'rolling' referred to getting vehicles moving. The expression combines the mechanical readiness of a vehicle with the driver's preparedness to begin a journey.
The phrase perfectly captures the American love affair with mobility and the open road. It suggests not just readiness but a certain restless energy - the idea that staying still is temporary and movement is the natural state.
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