Where I Get the Lame Humor Gene

Dad dials a number on his phone and puts it to his ear as its ringing.
"Yo!" he says as he makes some indescribable gesture with his hand, "Wazzup, mannn?"
He pauses to look at me as I laugh at his silly gangsta-wannabe attempts. "I probably just signaled some gang, didn't I? They're going to come bust a cap in me."