What the heck is a "flipper?"

Okay, I do know what a "flipper" is per se, but only because the folks at AOL told me when I complained about an automatic message being put on the end of all my emails. If I want to send a message about a great deal on getting in shape and include a link, I'll do it on my own or I'll write something here about it, but no, AOL has decided that these "flippers" are to be on every single email and can't be taken off. I would really like a way around this and don't want these stupid messages at the end of my emails, but when I suggested I may close my account, they said fine because there was nothing they could do about it. I really hope that isn't the case 'cause it really would be a pain to have to switch everything over. I suppose we'll see! If anyone has any insight or ways around this, please let me know. Cheers! ~Jerry