Why does Snoop need an umbrella? Fo'drizzle.

fo'shizzle was made popular by Snoop Doggy Dogg, which was probably where you got Snoopy from.

Ebonics is more of a shortening of words into easier pronunciation or just very bad grammer (ie. saying "I be here" rather than "I am here"). If you want a fantastic example of Ebonics, the book Their Eyes Were Watching God is written entirely in it.