Too long didn't read, still too long still didn't read - A summarized version or list with facts about a shortened version of a book, document or just a really long post.
A: I made up I read the book in e-book form in English and she believed that.
B: You did read the e-book, only the tl;dr version.
A: You mean the wiki page about the actual mission the book describes.
B: Ok, the tl;dr;stl;sdr version