They do rhyme, it's the bit at the start that's different. Dune is sort of "dyoon", not "doon". I should really learn the international phonetic alphabet to actually explain this properly.
Apparently both pronunciations are correct but I've never heard it pronounced any other way than doōn. But I think what is required for the joke to work is to pronounce doin' like doōn.
They do rhyme, it's the bit at the start that's different. Dune is sort of "dyoon", not "doon". I should really learn the international phonetic alphabet to actually explain this properly.
Apparently both pronunciations are correct but I've never heard it pronounced any other way than doōn. But I think what is required for the joke to work is to pronounce doin' like doōn.
Definitely works best in a "eyyy, I'm walkin' 'ere!" kind of voice