1) Yo mama so po she can't afford the "or".
2)
Dumb cracka: "Hello, would it be possible for me buy some drugs off of you, homey?"
Me: "Cracka you more of a po than Edgar Allan Poe. Fuck no I ain't sellin' no shit to you."
Dumb cracka: "I am not a police officer."
Me: "Cracka get da fuck out before you lyin' in chalk."