(noun) Derived from the word bunk. A person who speaks shit all the time; adept at maneuvring themselves into high profile, highly paid positions in companies, invariably using bunk tactics. They often use name-dropping techniques and display large quantities of irrelevant business cards accumulated in their illustrious careers.
Bunky was talking so much poppycock on that conference call that the telecon host had to abrubtly intervene and give the participants a timeout.