'pain in the ass' here would mean 'there is something wrong with my donkey'. We say arse (the 'r' isn't pronounced - it sounds like aaahss)

Years ago I'm ashamed to admit, I was very amused by Kevin Bloody Wilson, an Australian whose songs were the absolute epitomy of very very crude (but hilarious!) His song, 'You Can't Say C*** in Canada' is a scream. Anybody know of it? It might be on Youtube.