7 letter words:
pogonip12,
pooping12,
6 letter words:
oppugn11,
pigpen11,
popgun11,
upping11,
pepino10,
epigon9,
pigeon9,
pooing9,
goonie7,
noogie7,
5 letter words:
pinup9,
genip8,
gipon8,
oping8,
pengo8,
pingo8,
unpeg8,
opine7,
4 letter words:
pepo8,
pipe8,
poop8,
pope8,
pupu8,
goop7,
ping7,
pong7,
pung7,
nope6,
open6,
pein6,
peon6,
pine6,
pion6,
pone6,
poon6,
upon6,
genu5,
gien5,
gone5,
goon5,
3 letter words:
pep7,
pip7,
pop7,
pup7,
gip6,
peg6,
pig6,
pug6,
nip5,
ope5,
pen5,
pie5,
pin5,
piu5,
poi5,
poo5,
pun5,
upo5,
ego4,
eng4,
gen4,
gie4,
gin4,
gnu4,
goo4,
gun4,
neg4,
nog4,
eon3,
ion3,
noo3,
one3,
ono3,
2 letter words:
op4,
pe4,
pi4,
up4,
go3,
en2,
in2,
ne2,
no2,
nu2,
oe2,
oi2,
on2,
un2,