Also -y. Austral. colloq. [f. swagman (see SWAG sb. 12) + dim. suffix -IE, -Y.] A swagman.

1

1892.  E. W. Hornung, Under Two Skies, 109. Here’s a swaggie stopped to camp, with flour for a damper.

2

1900.  ‘H. Lawson,’ Over Sliprails, 88. Thefts and annoyances of the above description were credited to the ‘swaggies’ who infested the roads.

3