ffff-kus

four-eff means unfit/for military service./hannibal lecter.
(If closed captioning transcribes the bone-chilling sound Anthony Hopkins improvised in Silence of the Lambs, I suspect it would read “F-f-f-f.”)
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fluff a pillow/to enable attainment/of its potential.
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festival vestments/and their divestiture/invest foofoorah.
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freelance fred free-falls/fleeing felonious/fierce flighty fighters.
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compassionate giant/hesitates whilst Jack escapes:/”fee, fie..foe….fumfuh…….”
(one nifty aspect of the use of lowercase in poetry is that when you throw in something uppercase it becomes oddly emphatic. Since Jack is the star of the fairy tale “Jack and the Beanstalk” it’s appropriate to emphasize him.)
(Grateful acknowledgment to the late author Harlan Ellison for using the Yiddish-derived “fumfuh” in one of his talking-to-the-reader introductions. It is more commonly spelled “fumfer” but I like Ellison’s variant better.)
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“fini” means The End./”Finito Mussolini”/may well describe…
(The ending of the final ‘ku is left as an exercise for the reader. [smiley face])