OMG WTF!!!: Worthy but flawed ‘guide to online lingo’ from US Missing Kids centre (it’s a .pdf file). The idea is for parents to be able to ‘crack the code’ of their kids’ logged online chats and so find out if they’re up to anything dodgy. The only thing is, the centre has scrupulously avoided any acronyms which might be a bit naughty – so old standbys like LMAO and WTF are replaced by Laughing My Socks Off and What The Heck. Of course it’ll be the overall context of a given chat that sets of parental alarm bells rather than any specific terms used, but this still seems to me to be erring on the side of decency.
(NB: “OTM” hasn’t made it.)