noun. Those times when a do-it-yourself-lobotomy is the only way to make the pain stop.
Real citation: "Sorry about the brain bleach moment. I don't make the news, I just report it, but it did look awfully suspect. But then, I've got a dirty mind, so..."
(McKay, "Adult Moments on Kids Shows," July 27, 2004, Television Without Pity, http://forums.televisionwithoutpity.com/index.php?showtopic=3113944&view=findpost&p=1723467)
Made-up citation: "I can't think of totally squicky brain bleach moment off the top of my head...does my entire adolescence count?"