A vacation is having nothing to do and all day to do it in.

The joke turns on a paradox: a vacation is defined as “nothing to do,” yet it also provides “all day” in which to do that nothing. Orben humorously reframes leisure as an activity with its own schedule, poking fun at how people accustomed to productivity can treat even rest as something to be managed. The line also hints at a deeper modern anxiety: when obligations fall away, time can feel oddly heavy, and freedom can resemble emptiness unless one chooses how to fill it. Its appeal lies in its brevity and its recognition that idleness can be both blissful and faintly absurd.