One of this week's conventions in Las Vegas is The Blue Thong Society, expecting about 250 members to come for a few days in the sun. I was imagining all sorts of things, so googled them.

Here is something from their website:

"We’re smart and sassy women who have blazed new trails and broken the molds since birth. We’ve worked, rebelled, rock ’n rolled, raised families and never failed to stand up for what we believe in. Now we’re ready for our ‘next rally’: a time for us, our girlfriends and that second adolescence we’ve been hearing about in the news. We don’t plan to be ‘golden’ or ‘senior’ or ‘plus’... just us! We’ve never been good at sitting down and shutting up and we’re not about to start now. Blue haired? No way. Blue Thong? Any day. Join us as we Fight Frump and finetune the art of being hip, chic and fabulous forever!"

"Then someone made a comment that stuck: Wallo was more red thong than red hat.

"We laughed about it for a long time," Tushinsky said. "Nothing against the red hats, but no way. They're a great group of gals, but it wasn't for us."

The women, like a lot of Baby Boomers, expected to stay "hip, chic and fabulous" as they hit midlife and wanted a social organization to match. So they invented one.

They took that thong image - a blend of the panty and the footwear, which symbolized their view of themselves - and settled on blue as their identifying color.

They came up with a catch phrase - Fight frump! - and a signature drink, the Blue Martini. And they decided each chapter would be required to support a neighborhood charity, something that sets the Blue Thong Society apart from the Red Hatters."

So now we all know.