The area where hobos would camp outside was called a 'jungle', and anyone sleeping there was said to be 'jungling'.
The jungle was typically located near the town rail yard. Just outside the rail yard, trains leaving town would still be building up speed. Thus, this was the easiest place to hop a freight car.
The railroad used to employ its own policemen to catch thieves and trespassers. Hobos called these people 'bulls'.
The hobo's worldly goods were often wrapped in a handkerchief or rag. This is called a 'bindle', and hobos themselves were sometimes called 'bindlestiffs'.
Giant Eyeball can also be seen in the lower levels of Hero, the game.
This is a website about the mysterious Chu Chuk of the American Midwest.