trackie-daks 

trackie-daks are the bottom half of the tracksuit, not the whole. the whole tracksuit is the trackie; the pants are the trackie-daks. but Random's example is unsurpassable :)

they wouldn't let me into the Rissole wearing me trackie-daks and thongs.

trackie-daks by periwinkle January 10, 2005

trackie-daks 

A tracksuit. This term is very commonly used in Australia.

I walked to the shop in my old trackie-daks and thongs.

trackie-daks by Random September 3, 2003