As a South African, Oakie makes me howl with laughter.
In Afrikaans, diminutives are often formed by adding -jie or -tjie, which sounds like 'key' or the end of 'me no likee'. And the word 'ou', pronounced Oh, means a chap, a bloke, a lad, a guy ... an informal and/or affectionate and/or disparaging way of referring to a male human.
And 'outjie' is pronounced exactly like Oakie.
I haven't been to
Oz, but my friends who have assure me that it isn't safe to speak Afrikaans for privacy in the streets of Perth and
Sydney because some expat Saffer is bound to overhear and understand. Little Oakie might just be in for an interesting life.