I'm Australian and I might be missing some nuance about other dialects, but doggy-woggy is a completely different word from doggywog. The first is standard rhym

I'm Australian and I might be missing some nuance about other dialects, but doggy-woggy is a completely different word from doggywog. The first is standard rhyming reduplication, while the second is ambiguous but can be read as relating to a couple of different slurs (in my dialect). I have heard people use that word, although a good chunk were using it about themselves and with pride.