I say "Ballin'!" & "baller" a lot.
And "I used to could (do something)"
"I'm ain't goin'"/"I'm ain't skurred"

I like to replace t's with k's and roll my t's like a Spanish r when I say "what" in a question. Like "whattttt I do?" It doesn't work for everything, though. Kinda hard to explain.

And I don't say "brah" or "bro". I say "breh". Again, you won't get it unless you hear it and then it'll probably get on your nerves.