a mythical Australian mammal said to have lived near billabongs and rivers, that is documented in old Australian tales. They grew to about 2 foot long and 1 foot high and made loud grunting noises in the night. Turns out these creatures were just Koalas.
old Bazza ran back from the dam like a soft-cock, claiming he saw a bunyip. Turns out it was just a Koala trying to have its way with him.