tua o Tāwauwau
1. (location) back of beyond, middle of nowhere, wilderness, way off, away with the fairies, way off beam, way off track - an idiom used to indicate that something is a long way away, a long way off, or is incorrect.
Manu: Ai!Kei hea kē ō mahara e rērere ana? Rangi: Te āhua nei kei tua o Tāwauwau! / Manu: Heck! Where has your mind wandered off to? Rangi: It would seem away with the fairies.
Kei tua o Tāwauwau tōu whakaaro. / Your idea is way off beam.