TL;DR is an internet slang that stands for "too long; didnt read". It is used to indicate that a text being referred to has been ignored because of its length or to introduce a summary of an online post or news article. The abbreviation is often seen on social media sites, where it usually accompanies a link, and perhaps a comment, based on the title of the article or something the poster has heard about it. It is also used as a comment on verbose postings on blogs and discussion forums. The correctly-applied semi-colon in TL;DR makes it unusual as most abbreviations do not include punctuation. The abbreviation can also be seen all lower-case as tl;dr.