An existential irrational magic, a playful fuss over nothing;
similar to foofaraw
meaning "excessive or flashy ornamentation" or "a fuss over a trifling matter";
related to acting the fool
to behave in a comical manner.
In a land overgrown that was known to be shown by its own magic tone of Foo Fah...
The Foo Fah festival was filled with fairly ridiculous flights of fancy.