Initially in street slang "hood" was short for hoodlum. The word came from both popular press at the time (1860s) and susequent authors like Herbert Asbury (Gangs of New York). In modern vernacular hood can also mean neighborhood an example is Boyz n the Hood Boyz n the Hood (1991).

However it also retains about the same meaning today. When people say music is hood they mean it's street crime based, thugging, gangster etc.

Somehow I think you know most of this fdd2blk, you are just pulling our chain because you are one wild and crazy guy!