noah1
/nəʊə
/noun Australian informal
A shark.
Origin
1940s: from rhyming slang Noah's ark.
Noah2
/ˈnəʊə/(In the Bible) a Hebrew patriarch represented as tenth in descent from Adam. According to a story in Genesis he made the ark which saved his family and specimens of every animal from the Flood. See Deucalion and Gilgamesh.