i am not one who has meaningless, purely-sexual short term relationships with many women. instead, i am genuinely attracted to and interested in women for their personalities and the long-term bonds we will hopefully form. he's joking - he's a player.
Paul is asking whether or not you participate in the drinking of promethazine (prescription cough syrup which is ingested to get a buzz), or could be doubting you're even aware of the fact that it happens in many areas across the country.
because of all the criminal activity Dr. Dre witnessed in Compton California, it was not unusual for the people of his neighborhood to find corpses of people who were murdered on Greenleaf Boulevard just north of Interstate 91
Just stating the fact that he is not Santa Claus. As it is very popular for kids (in this case freeloaders) to sit on Santa's lap and ask for presents (free stuff). "now get off my sack" means leave him alone and stop asking for stuff.
this is a rhetorical question, as he is assuming you know nothing about hiding bricks (large packages) of cocaine in the trunk of your car in, on, or under the spare tire (out of sight) to transport them, like he does