5 letter words:
gulfs9,
gulps8,
plugs8,
4 letter words:
fugs8,
gulf8,
flus7,
gulp7,
gups7,
plug7,
pugs7,
spug7,
plus6,
puls6,
guls5,
lugs5,
slug5,
3 letter words:
fug7,
flu6,
gup6,
pug6,
plu5,
pul5,
pus5,
sup5,
ups5,
gul4,
gus4,
lug4,
ugs4,
2 letter words:
up4,
gu3,
ug3,
us2,