The gap between the back of the collar of a man's shirt and his suit, which indicates that the suit is cheap and does not fit properly, and that its wearer is lower class (proletarian). Also "pleb gap."
Executive: The new guy in accounting doesn't seem as if he belongs in a firm like ours.
Fellow executive: Yes, you can tell that just by looking at his suit: he's got prole gap.
Executive: What???
Fellow executive: A gap between a guy's suit and shirt collar is a sign that the suit is not fitted properly and that the guy's a prole.
A Poolie (or Poolies in the plural) refers to the leaving of an unfinished alcoholic beverage at a bar or pub. The term is derived from the instance in 2013 when Matt Poole left the first and only unfinished pint of Guinness at Murphy's Pub in Galway.
A term originating from 1984 referring to the cheap entertainment (porn + low quality entertainment news) handed out by Ingsoc to the masses. Since then, thid term has been used to describe cheap entertainment that is purely crap.
Korean pop is just prolefeed. Turn it off and play some beautiful EDM or some meaningful Rock or Metal.