nut-bar

nut-bar (comparative more nut-bar, superlative most nut-bar)

1. (informal) Crazy, mad.
   • 2015 November 19, Jamie Wall, “Sky's the limit for Richie McCaw”, in Radio New Zealand‎:

     McCaw won every trophy going, but also something probably harder than all of them: the near-universal respect of the notoriously fickle New Zealand rugby fan. Yes, even the most nut-bar talkback caller would have a hard time admitting McCaw hasn't been absolutely incredible for all of his 14 seasons in an All Black jersey.

• nuts, nutty

nut-bar (plural nut-bars)

1. (hardware) A bar or shaft with an aperture for a bolt or threaded rod to attach to or pass through.
   • 1879, Thomas E. Morpeth, Rock and coal drilling machines‎, US Patent 216,437, page 493:

     The bit-screw, passing through the nut-bar, is then turned back from the face of the coal or rock as far as is found necessary, and the bit secured to the same.

2. (informal) An insane person, a crazy person, a madwoman or madman.
   • 2007, Emily Givner, A Heart in Port‎, page 202:

     The nut-bar in Bed Three kept us all awake with his morose, nonsensical prophesies. And by “all of us” I mean myself, the gentleman in Bed Two, and the nut-bar as well, of course

• (insane person): nut, nutter, fruitcake; see also Thesaurus:mad person

• tanbur, turban