back in school, i used to laugh at that book for the very reason you posted it.
and with a friend of mine, we developed a story and tried to flesh out goatse as a person.
i will give you a few of what we created.
-goatse has no mom
-goatse lives at his moms house
-goatse's favorite food is cheetos
-the giver also lives at goatse's mom's house
-there is a pond in the back that the giver goes fishing in
-the giver uses his giant penis to catch fish
-goatse is roy campbell
-solid snake is the giver
-the entire universe, including goatse and whatnot, are all located inside of goatse's ass
-the only thing more powerful than goatse is hideo kojima
high school + boredom durring class = coming up with this stuff