Oh I've got 'bingo wings' too! I've lost a lot of weight (I'm now down to 9st 10lbs, or 136 pounds) and my skin hasn't shrunk to fit the new me. When I play bingo in our village hall, and I call with a win, my 'bingo wings' hang down horribly inside my jacket. I'm tempted to get back on the buttered crumpets and fill up the skin with some fat!
I've seen ladies on TV having surgery to take in the loose skin, but I don't fancy that one bit.