4 letter words:
cock12,
pick12,
pock12,
dick11,
dock11,
cook10,
coco8,
coop8,
poco8,
poop8,
odic7,
pood7,
3 letter words:
ick9,
kip9,
kop9,
kid8,
cop7,
koi7,
pic7,
pip7,
pop7,
cod6,
dip6,
doc6,
pod6,
coo5,
poi5,
poo5,
2 letter words:
ki6,
op4,
pi4,
do3,
id3,
od3,
oi2,