Quote Identification

Identify speaker, plot and significance.

I had on a new plaid skirt also that blew a little in the wind, and whenever this happened the red, white, and blue banners in front of all the houses stretched out stiff and said tut−tut−tut−tut, in a disapproving way. The largest of the banners and the largest of the lawns belonged to Daisy Fay's house.