In other episode , the Simpsons meet a hobo who tells them American folktales in exchange for a spongebath .
In The Simpsons , Grampa explains hobo symbols to Bart .
In other episode , the The Simpsons meet a hobo who tells The Simpsons American folktales in exchange for a spongebath .
In The Simpsons , Grampa explains hobo symbols to Bart .