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.
by ring-tailed roarer June 9, 2009
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