Angel Dust - Some sort of illicit drug. PCP sounds about right.
Apple Bottom - Lower Manhattan sounds about right
Blasted - Under the influence of a drug, probably an upper; frustrating or annoying
(to) Blaze - speed, move quickly
Brownie - girl scout
Bud - beer; close friend
Chill - relax, loaf around
Cholo - ??? indicates a person, I think it is an insult.
Crew - community of clique/gang
Dude - male; interjection of surprise or sympathy ("wow" or "not cool"
Faded - ??? possibly "passed out"? Could be "dead".
(to) Fly Colors - to fly the American flag
Fly - Cool, fashionable
Fool - insult, sometimes used jokingly of friends
(to) Front - to set up for fund a deal or project,
Groovy - Cool! I like this!
Homie - Member of clique/gang
Hood - Neighborhood
(to) Keep it on the Low Down - keep fairly quiet and inconspicuous
Popped - Ingested, probably a drug in pill or drink form.
Posse - your clique/gang
Post - Look out for trouble during an operation.
Sweet - I like this! Cool!
Tight - in good standing with
Wasted - high on a drug, probably a downer
Weed - marijuana