5 letter words:
frock14,
pucka13,
croak11,
crook11,
proof10,
copra9,
croup9,
karoo9,
4 letter words:
fuck13,
pack12,
pock12,
puck12,
fork11,
cark10,
cook10,
cork10,
park10,
pork10,
rack10,
rock10,
ruck10,
coof9,
corf9,
curf9,
frap9,
poof9,
pouf9,
prof9,
capo8,
carp8,
coop8,
coup8,
crap8,
crop8,
kora8,
okra8,
poco8,
raku8,
rook8,
faro7,
fora7,
four7,
roof7,
arco6,
orca6,
poor6,
pour6,
prao6,
prau6,
proa6,
roup6,
3 letter words:
kaf10,
kop9,
fop8,
ark7,
auk7,
cap7,
cop7,
cup7,
koa7,
kor7,
oak7,
oka7,
pac7,
arf6,
far6,
for6,
fou6,
fro6,
fur6,
oaf6,
apo5,
arc5,
car5,
coo5,
cor5,
cru5,
cur5,
oca5,
orc5,
par5,
poo5,
pro5,
pur5,
rap5,
roc5,
upo5,
urp5,
oar3,
ora3,
our3,
2 letter words:
ka6,
fa5,
of5,
op4,
pa4,
up4,
ar2,
or2,