The last verse of the DT version of "Streets Of Forbes" [aka "Death of Ben Hall"] states that they tied his body to his 'prop', before they "dragged him through the streets of Forbes To show the prize they had". 'Prop' doesn't rhyme with 'had'. The word should be PRAD ~~

"www.my-free-dictionary.com

prad
   
noun Australian .
Informal . horse.

Origin:
1790–1800;  metathetic variant of Dutch paard  horse (cognate with German Pferd ) ≪ Late Latin paraverēdus  post horse for lesser highways. See palfrey"

~Michael~