what is a doonas
(redirected from Doonas) Also found in: Dictionary. Related to Doonas: duvet. Austral. a quilt, stuffed with down or a synthetic material and containing pockets of air, used as a bed cover in place of the top sheet and blankets. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content.