MEANING:\. verb intr.: To waste time without accomplishing much.
noun: Fuss; activity perceived as a waste of time.

ETYMOLOGY: Of imitative origin, to describe something flapping in the wind. Earliest documented use: 1874.

FAPF - all you can utter when you're stupefied beyond speaking [homage to Major Hoople]

FA𝒇𝒇 - the fourth note of the scale, played very loudly

F.A.C.F. - Fellow of the American College of Fellows