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To reduce a working relationship with a third-party consultant to that of a vendor, regardless of the personal or professional connection.
Jeremy was in shock to discover that his client did not pay him for his professional services. To vendorify someone who is so loyal, helpful and dedicated is just unconscionable.

Jeremy heard about graphic designers not getting paid in working in the entertainment industry, but he was in shock to discover.... he had been vendorified.
by jbbman October 22, 2009