Robyn, thanks for confirming Bob's 'whare' and 'ngaio' and for 'koromiko'. That only leaves the 'gino/geeno' sounding one - it is definitely not 'rimu' which is in the chorus. I doubt 'slasher' because, as I indicated above, there is no 'l' sound at all in the word which is articulated clearly enough.
--Stewie.