It's something that we've always suspected: Aussie blokes don't measure up to Kiwis.
On the rugby field, Aussies have long been jealous of the towering All Blacks. At the Olympics Australia was forced to claim Kiwi medallists as "Australasians" to prop up their drooping medal count.
And now, provocative research has revealed something even the most hardened Ockers will find hardest of all to take - New Zealand men have bigger willies.
The average Kiwi penis is apparently 13.9cm when erect - on par with British blokes and ahead of the Australians (13.2cm), Americans (12.9cm) and the Irish (12.7cm). Koreans have the smallest at a tiddling 9.6cm.
But while we may trouser the masculine equivalent of the Bledisloe Cup, New Zealand men do not have too much to crow about on the world stage, coming only 78th out of 113 nationalities.