7 letter words:
mudbugs13,
6 letter words:
mudbug12,
subgum11,
5 letter words:
dumbs10,
4 letter words:
dumb9,
bums8,
buds7,
bugs7,
dubs7,
gubs7,
gums7,
muds7,
mugs7,
smug7,
dugs6,
3 letter words:
bum7,
bud6,
bug6,
dub6,
gub6,
gum6,
mud6,
mug6,
bus5,
dug5,
mus5,
sub5,
sum5,
umu5,
gus4,
sud4,
uds4,
ugs4,
2 letter words:
mu4,
um4,
gu3,
ug3,
us2,