7 letter words:
humbugs15,
6 letter words:
humbug14,
subgum11,
5 letter words:
humus10,
4 letter words:
bush9,
hubs9,
hums9,
mush9,
bums8,
gush8,
hugs8,
sugh8,
ughs8,
bugs7,
gubs7,
gums7,
mugs7,
smug7,
3 letter words:
hub8,
hum8,
bum7,
hug7,
ugh7,
bug6,
gub6,
gum6,
mug6,
bus5,
mus5,
sub5,
sum5,
umu5,
gus4,
ugs4,
2 letter words:
hm7,
sh5,
uh5,
mu4,
um4,
gu3,
ug3,
us2,