If you're confused by all this modern terminology and technology thaen you'll get mystified by this new phrase, TWILF.
It's an adaptation of MILF which in itself is an ancronym for "Mother I'd Like to Fuck". No, not my own mother and not necessarily yours. Rather, a mature woman, radiant in hte prime of her liffe, that you have sexual fantasies about.
The TW comes from Twitter. So it means Twitterer I'd like to fuck.
All of which is most amusing and could be applied to anyone from Demi Moore to Stephen Fry.
The current furore is that a cartoon show on Al Gore's TV channel Current referred to Sarah aplin as a TWILF. Which is probably rather more insult than the lady deserves.