1937  The dried [caribou] meat (nipko) is put up during the spring migration of the bucks northwards, the meat being cut into strips and set in the sun to dry.
1942  Driftwood fires sizzle and smoke in front of every tent, wooden racks sag under the weight of dried strips of unpalatable looking seal meat, the age-old nipkoo that provides a welcome tid-bit in times of plenty and safeguards against famine when times are hard.
1955  nipko, n. An Eskimo term for jerky. Nipko is usually made of caribou meat, but may be of beluga or narwhal.