This definition appears very rarely
See other definitions of NACK
Samples in periodicals archive:
Commercial harvesting of Kangaroos in Australia. by Tony Pople and Gordon Grigg Department of Zoology; A National Advisory Committee on Kangaroos (NACK)...
Member, National Advisory Committee on Kangaroos to the Australian Minister for the Environment 1985-1995; Member, Victorian Intensive Dairy Review Committee, 1983;