field day

Etymology
Some postulate the idiomatic usage is derived from the "parade day" military use. A parade is much easier than the soldiers’ usual drilling and intense exercise.

Noun

 * 1)  A day for manoeuvres and tactical exercises in the field (across the landscape).
 * 2) A school day for athletic events; a sports day.
 * 3) A day of class taken away from school for a field trip.
 * 4)  A great time or a great deal to do; a period of bustling activity.
 * 5)  A great time or a great deal to do, at somebody else's expense.
 * 6)  A day on which there is top-to-bottom all-hands cleaning.
 * 1)  A great time or a great deal to do, at somebody else's expense.
 * 2)  A day on which there is top-to-bottom all-hands cleaning.
 * 1)  A great time or a great deal to do, at somebody else's expense.
 * 2)  A day on which there is top-to-bottom all-hands cleaning.
 * 1)  A day on which there is top-to-bottom all-hands cleaning.
 * 1)  A day on which there is top-to-bottom all-hands cleaning.
 * 1)  A day on which there is top-to-bottom all-hands cleaning.
 * 1)  A day on which there is top-to-bottom all-hands cleaning.
 * 1)  A day on which there is top-to-bottom all-hands cleaning.
 * 1)  A day on which there is top-to-bottom all-hands cleaning.
 * 1)  A day on which there is top-to-bottom all-hands cleaning.

Translations

 * Hungarian:
 * Swedish: