Hobo
A hobo is a migratory worker or homeless vagabond, especially one who is impoverished. The term originated in the Western—probably Northwestern—United States around 1890. Unlike a “tramp”, who works only when forced to, and a “bum,” who does not work at all, a “hobo” is a traveling worker.
H. L. Mencken, in his The American Language (4th ed., 1937), wrote:
Tramps and hobos are commonly lumped together, but see themselves as sharply differentiated. A hobo or bo is simply a migratory laborer; he may take some longish holidays, but soon or late he returns to work. A tramp never works if it can be avoided; he simply travels. Lower than either is the bum, who neither works nor travels, save when impelled to motion by the police.
John Lee Hooker – HoboBlues
When I first thought to hobo’in, hobo’in
I took a freight train to be my friend, oh Lord
You know I hobo’d, hobo’d, hobo’d, hobo’d
Hobo’d a long, long way from home, oh Lord