tl;dr

word type: acronym

  1. Abbreviation for "too long didn't read"

What the Poster is Really Saying:

Your post was so long I figured you don't understand brevity and I can't be bothered with your story anyway.

Another Point to Note

Sometimes people who write "tl;dr" actually DID read the post and they don't consider their term usage to be a lie. The reason is that term can also mean "that was a really long post."

Credit

Submitted by Wetdog