7 letter words:
bloubok15,
5 letter words:
booky14,
bulky14,
booby12,
lobby12,
yobbo12,
yokul12,
looby10,
bobol9,
4 letter words:
kybo13,
yolk11,
youk11,
yuko11,
boko10,
book10,
bouk10,
bulk10,
kobo10,
boyo9,
buoy9,
blob8,
blub8,
boob8,
bubo8,
bulb8,
kolo8,
look8,
oulk8,
bolo6,
bool6,
lobo6,
obol6,
3 letter words:
kyu10,
yok10,
yuk10,
bok9,
kob9,
boy8,
buy8,
yob8,
bob7,
bub7,
ouk7,
loy6,
you6,
boo5,
lob5,
obo5,
loo3,
lou3,
2 letter words:
ky9,
by7,
ko6,
oy5,
yo5,
yu5,
bo4,
ob4,
lo2,
oo2,
ou2,