Here are a few examples: 1. "You already know" => This can mean "Yeah, that's right" or "I agree" 2. "Bet" => This is most often used in the same way as "Okay". It usually ends a conversation. Here's an example: Adam: "Hey John I will see you tomorrow, okay?" John: "Okay, bet!" 3. "Aiight" => "Alright" 4. "Brand new" => This is a way of describing someone who is acting snobby, stuck up or someone who thinks they are better than everyone. Here's an example: "Wow man, you just got all brand new on us since you got that new job, you don't even talk to us anymore!" 5. "Flexin/Stuntin" => These two words mean the same thing. It means to show off something you have. Example: "Wow, he sure is flexin' that new watch".

Something that I've noticed that is markedly different between "black" and "white" English is that white people usually say, "Where do you live?" and black people tend to say "Where do you stay?" It's not slang, which is what I think the poster was looking for, but it is a pattern I've noticed.