this lyric from Lil Wayne has a girl wondering how the gun will fire if it is made out of plastic in the following lyric of the song says "you see when ya boy run off" so Lil Wayne has told her the gun is made from plastic as to not worry her
Lil Wayne is telling 'haters' if there happens to be any 'drama' (conflict; friction; hostilities) he will pay it no mind, pacing himself in order to avoid overblowing the situation - simultaneously playing on the name of the NBA team, the Indiana Pacers.
Referring to having his victims of a robbery face the wall while he makes off with their possessions. This is akin to the last scene in the 1999 film The Blair Witch Project where the main character is seen in a cabin facing the wall.
As he gives listeners a verbal tour of his home, Wayne is using a metaphor about owning every part of his house to say that he owns the drug market on all the major street corners, and all the backroads as well.