[Furudanuki]

Originally Posted by CCYoshi

Possible reference in 15:

Spoiler for Episode 15::

When the girls are talking about visiting Miyuki's house, they start discussing what kind of pet she would have. Konata brings up that Miyuki has to have a "big, white dog".

Now what other rich girl has a big white dog? Chiyo of Azumanga Daioh. It feels like it could have been intentional; at least, I'm suspicious of anything that comes out of Konata's mouth.

Spoiler for Other possibility:

It probably was a Azumanga Daioh reference, since that series is very well known. However, the same criteria of "rich family, security fence, large yard, big white dog, and parasol" would also be an accurate reference for Ana Coppola from Ichigo Mashimaro. Konata could have had both examples in mind.