The Economist has a book review on X-Treme Latin, a book that dares to create Latin sayings for today's bumper stickers, social insults and pick-up lines. It seems like it has some choice phrases like Nisi mecum concubueris, phobistae vicerint (“If you won't sleep with me, the terrorists will have won.”). It's not out yet (March 8th?), but the book has plenty of quotes along the lines of those mentioned in the review, it could be quite amusing.