A straightforward test carried out in nightclubs to ensure the chick you're chatting up is a chick and not a chick with a dick.
The test is performed simply by grabbing the subject by the groin to see whether or not you cop for a pair of bollocks. The test was famously carried out by Mick 'Crocodile' Dundee in the film of the same name, and is thus named after him.
My mate: "I really fancy that Hilary Swank"
Me: "You've got to be joking. She'd never pass the dundee test!"