7 letter words:
opgefok17,
4 letter words:
poke10,
pook10,
gook9,
poof9,
goof8,
goop7,
pogo7,
3 letter words:
kef10,
kep9,
kop9,
fop8,
keg8,
feg7,
fog7,
oke7,
foe6,
oof6,
peg6,
oop5,
ope5,
poo5,
ego4,
geo4,
goe4,
goo4,
2 letter words:
ko6,
ef5,
fe5,
of5,
op4,
pe4,
po4,
go3,
oe2,
oo2,