5 letter words:
frock14,
4 letter words:
zouk17,
zurf16,
fuck13,
fork11,
cork10,
rock10,
ruck10,
corf9,
curf9,
koru8,
four7,
cour6,
3 letter words:
coz14,
cuz14,
kor7,
ouk7,
rok7,
for6,
fou6,
fro6,
fur6,
orf6,
ufo6,
cor5,
cru5,
cur5,
orc5,
roc5,
ruc5,
our3,
2 letter words:
zo11,
ko6,
of5,
or2,
ou2,
ur2,