bell sheep

noun
  1. Australian a sheep that a shearer is just starting to shear (and which he is allowed to finish) as the bell rings for the end of a work period
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