from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of or pertaining to employment in the black market; that is, to engagement in illicit trade or distribution of untaxed goods and services.
From black market and -collar. (Wiktionary)
The latest outlet, located at Old School on Mount Sophia, isn't even "officially" open yet, but it's already packed on a regular basis - and not just by the black-collar creative types that work on the hill.