Illness marked by attacks of vomiting.
 he hasn't been long enough in the outback to have contracted the Barcoo sickness
 Example sentencesExamples
-  Barcoo sickness of Australia may be related to malaria.
 -  I've never known Charlie to have trouble with his kidneys. We all think it was Barcoo sickness.
 -  There is a complaint, from which those long resident in the distant bush frequently suffer severely, the Barcoo Sickness.
 -  It was not a household fly, but the small, sticky sort that bushmen blame for Barcoo Rot and Barcoo Sickness.
 -  A common illness among shearers was "Barcoo sickness".