Green’s Dictionary of Slang

(N.Z.) drunk.

1751		Smollett Peregrine Pickle (1964) 648: ‘Wine-bound, I suppose,’ (cried another.) ‘Hooped with wine! a strange metaphor!’ (said a third).
1941		in J.C. Reid Book N.Z. (1964) 288: But Adolph one night when ‘hooped’ / Decided to send his paratroops [DNZE].
1962		‘Hori’ Half-gallon Jar 27: And this plonk have the real kick alright and soon the coot get very hoopsycoopsy [DNZE].
1988		McGill Dict. of Kiwi Sl. 58/1: hooped drunk.
2003		McGill Reed Dict. of N.Z. Sl. [as cit. 1988].