Green’s Dictionary of Slang

(N.Z.) in a state of chaos; wrong.

1988		McGill Dict. of Kiwi Sl. 10/2: arsey boo chaos, twisted, wrong; eg ‘I’m going to have to say that the organisation of this reunion is all arsey boo.’.
2003		McGill Reed Dict. of N.Z. Sl. [as cit. 1988].