@vikorr,
Some of it may have to do with accent, and cultural elocution (I think that's right).
My sister lives in the US.
She mentioned saying "Good on her" in response to how a woman had handled herself, and getting confused stares. It wasn't what she said, but how she said it, which sounded like "Good Honor" to her fellow Americans. How she said it (dropping the 'h' in 'her' for that particular saying), is very common in Australia.
She also told me about asking for a glass of water at a restaurant - several times, because the waitress didn't understand her. Her husband had to repronounce the 'a' for her, because Australians pronounce water as worter (or worta)