6 letter words:
fucker15,
fureur9,
5 letter words:
kurre9,
curer7,
recur7,
4 letter words:
feck13,
fuck13,
kerf11,
cuke10,
reck10,
ruck10,
curf9,
kuru8,
furr7,
crue6,
cure6,
curr6,
ecru6,
ruer4,
ruru4,
3 letter words:
kef10,
erk7,
euk7,
kue7,
uke7,
erf6,
fer6,
feu6,
fur6,
ref6,
cru5,
cue5,
cur5,
ecu5,
rec5,
ruc5,
err3,
rue3,
ure3,
2 letter words:
ef5,
fe5,
er2,
re2,
ur2,