Refering to police officers po-po,pigs,five-o ect. The old style six shot police .357 magnum or the like in a holster, hence the bullets are six in quanity and facing down.
Down like six thirty - A phrase popularized in urban hip hop as a term for extreme agreement or participation. It was derived from a visual reference of the face of an analogue clock commonly worn around the neck as part of early hip hop fashion. At 6:30 both hands of the clock point downwards. The phrase is usually accompanied with an exaggerated motion of the speaker thrusting both hands downward to further exaggerate the exclamation.
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".