8 letter words:
kefuffle21,
6 letter words:
keffel16,
5 letter words:
fluff14,
fluke12,
4 letter words:
fuff13,
keef11,
luff10,
keel8,
leek8,
leke8,
leku8,
luke8,
feel7,
flee7,
flue7,
fuel7,
3 letter words:
kef10,
eff9,
eek7,
eke7,
elk7,
euk7,
kue7,
lek7,
uke7,
elf6,
fee6,
feu6,
flu6,
eel3,
lee3,
leu3,
ule3,
2 letter words:
ef5,
fe5,
ee2,
el2,