[eru]

> As an American, I had to do a terrible impression of an Aussie accent to hear how “sauce” and “horse” could possibly rhyme.

I guess it help to start with a non-rhotic accent.

Going off on a tangent: I was very confused when one Calvin and Hobbes comic rhyme 'macabre' with 'job'; I figured out later that it's because American accents are weird.

[nkrisc]

Actually I assumed that they were adding in an R to “sauce”, almost like “source”. I don’t know many Australians, but from what I can remember I think they are likely to pronounce the R in “horse”. Now I don’t know.

[justsomehnguy]

https://www.merriam-webster.com/dictionary/macabre

[eru]

See also https://en.wiktionary.org/wiki/macabre#Pronunciation

(UK) IPA(key): /ˌməˈkɑː.bɹə/, /ˌməˈkɑː.bə(ɹ)/

(US) IPA(key): /məˈkɑb/, /ˌməˈkɑ.bɹə/, /ˌməˈkɑ.bɚ/