Definition of underdaks in English:

underdaks

plural noun

Australian
informal
  • Underpants.

    ‘first of all they stripped me down to my underdaks and then they sprayed me all over’
    • ‘He had often mused that clean underdaks would be the least of your worries if hit by a double-decker.’
    • ‘I stood there somewhat shocked at having my underdaks exposed to the world.’
    • ‘Wear your underdaks if you don't want to get naked.’
    • ‘We haven't seen much of Steve lately but we've seen lots of his son, Nick, parading in underdaks during the fashion festival.’
    • ‘He takes off his jeans and underdaks.’

Origin

1980s: from under + daks.

Pronunciation

underdaks

/ˈʌndədaks/