When the English settlers landed in Australia, they noticed a strange animal that jumped extremely high and far. They asked the aboriginal people using body language and signs trying to ask them about this animal. The aboriginal peoples responded with "Kan Ghu Ru". The English then adopted this words and named the animal kangaroo.
What the aboriginal people were really trying to say was "We don't understand you", "Kan Ghu Ru". Have a nice day. :)