(Clue: the second syllable doesn't rhyme with 'porn'.)
Well, depends on where you grew up; no doubt there has to be some district where the two are regularly paired up in couplets and naughty Limericks.
I can certainly imagine even a native Melburnian being willing to countenance such a couplet as
There wás a young mán from Melbóurne
Blah bláh blah blah bláh blah blah pórn
...provided that the following lines were (and the blahs replaced by) something sufficiently amusing. Especially if there might be space for a reference to the correct pronunciation somewhere.
I remember the occasion tinners but I can't place the name...
...oh yes I can, and yes it was me. Robert Davidson. Not a Melburnian but a Brisbanite.