Our dear oblivious dyke asked: "Am I missing something I ought to be seeing?"
"It's purple!" quoth the woman sitting in between them.
"Well then, I really wanted to see it!" our dyke exclaimed/explained, peering over lasciviously.
"I only dye my hair purple!" protested the woman with the purple shirt and the purple under-layer to her skirt.
"Well, it seems like something you would have done, dye your triangle purple," the dyke said, digging herself in deeper.
"Do the drapes match the carpets?" asked the resident smartass.
"No, I believe in waxed floors," the purple-haired lady responded reflexively, not one to miss an opportunity for a snappy comeback. Then she realized what she'd said and hid her face in her hands as the rest of the group roared.