Dictionary.com
definitions

namma hole

[nam-uh]
noun Australian.
  1. gnamma hole.

Origin of namma hole

From the Nyungar word ŋama
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for namma hole

namma hole

noun
  1. Australian a natural well in a rock

Word Origin for namma hole

C19: from a native Australian language
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012