What does かろう　かろう　なんだけどな mean?


> まあ ごめんなさい。 この子 安酒の匂いがに苦手で。。。

"Ah, I'm sorry. This child is bad with the smell of cheap sake"

And his answer is

> あ 匂っちゃったか~ 安かろう美味かろうなんだけどな ひっく!

"Ah, it stinks"

What exactly is the meaning かろう+ かろう+ なんだけどな?




安かろう美味かろう is a one-off parody of
[安かろう悪かろう](https://jisho.org/word/%E5%AE%89%E3%81%8B%E3%82%8D%E3%81%86%E6%82%AA%E3%81%8B%E3%82%8D%E3%81%86),
which is a common set phrase. かろう is an uncommon inferential (or "volitional")
form of an i-adjective:

  * [よかろう - What does it mean? Where does it come from?](https://japanese.stackexchange.com/q/3300/5010)
  * [Is the volitional form of i-adjectives often used?](https://japanese.stackexchange.com/q/44985/5010)

So the literal meaning of 安かろう悪かろう is something like "seemingly cheap,
seemingly bad", hence the idiomatic meaning of "you get what you pay for". You
won't see this ～かろう～かろう pattern outside of this set phrase, so [you need to
learn it by rote](https://japanese.stackexchange.com/a/42724/5010).

In your case, 安かろう美味かろう is the opposite of 安かろう悪かろう, so the intended meaning
as a parody is "This drink tastes great for the price" or "You get more than
what you pay for".

～なんだけどな is just "It's ～, isn't it?". 安かろう美味かろう is being treated as a long noun
phrase.

