share-milker

noun

(in New Zealand) a person who lives on a dairy farm milking the owner's herd for an agreed share of the profits and, usually, building his own herd simultaneously

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012