6 letter words:
fucker15,
ruckle12,
rueful9,
curule8,
5 letter words:
fleck14,
fluke12,
clerk11,
kluge10,
kugel10,
fugle9,
fugue9,
cruel7,
lucre7,
ulcer7,
gluer6,
gruel6,
luger6,
4 letter words:
feck13,
fuck13,
geck11,
guck11,
kerf11,
cuke10,
luck10,
reck10,
ruck10,
clef9,
curf9,
frug8,
fugu8,
gulf8,
kuru8,
leku8,
lurk8,
flue7,
fuel7,
furl7,
clue6,
cure6,
curl6,
ecru6,
luce6,
glue5,
grue5,
guru5,
luge5,
urge5,
lure4,
rule4,
3 letter words:
kef10,
keg8,
elk7,
fug7,
kue7,
lek7,
uke7,
elf6,
fer6,
feu6,
flu6,
fur6,
ref6,
cel5,
cru5,
cue5,
cur5,
ecu5,
rec5,
erg4,
gel4,
gul4,
leg4,
lug4,
reg4,
rug4,
leu3,
rue3,
ulu3,
2 letter words:
ef5,
fe5,
el2,
er2,
re2,