donkey vote

noun2

1. •
   (Australia) The act of casting a vote in an election using a preferential voting system, by specifying the candidates in the order in which they are listed on the ballot paper (i.e., by numbering the choices sequentially from top to bottom, ignoring what they represent).

   • Examination of the 1984 and 1987 federal elections showed the donkey vote to be worth about 0.65% of the formal vote (Peetz 1989:469). — 1993
2. •
   (Australia) A vote so cast.

   • The share of preferences going from the Progress Party to the Democrats was swollen, if not almost wholly accounted for, by donkey votes. — 1979