4 letter words:
meff12,
muff12,
woof10,
fume9,
meow9,
mofo9,
meou6,
moue6,
3 letter words:
eff9,
few9,
off9,
wof9,
fem8,
fum8,
mew8,
mow8,
wem8,
feu6,
foe6,
fou6,
oof6,
owe6,
ufo6,
woe6,
woo6,
emo5,
emu5,
meu5,
moe5,
moo5,
mou5,
oom5,
2 letter words:
ef5,
fe5,
of5,
ow5,
we5,
wo5,
em4,
me4,
mo4,
mu4,
om4,
um4,
oe2,
oo2,
ou2,