Tldr Tldr
Also known as: tl;dr · TL;DR · TLDR · too long; didn't read
tl;dr (short for "too long; didn't read") is one of the internet's oldest and most widely used slang abbreviations, dating back to at least 20021. Originally a dismissive reply to overly long forum posts, tl;dr flipped into a practical tool: writers started placing it before their own summaries as a courtesy to readers2. The term became so embedded in online communication that Oxford Dictionaries added it in 20131.
Overview
tl;dr is a four-letter abbreviation that packs a surprisingly layered meaning. At its simplest, someone drops "tl;dr" in reply to a post they consider too long to bother reading. But the term developed a second, more constructive use: writers append "tl;dr:" followed by a brief summary at the end (or beginning) of their own lengthy posts, signaling they know the text is long and offering readers a shortcut1.
The abbreviation can be written several ways: tl;dr, TL;DR, TLDR, or even tl,dr. All are interchangeable. Context determines whether it's being used as a rude dismissal or a helpful summary label. On forums and Reddit, a "tl;dr" at the bottom of a long comment is considered good etiquette. Thrown at someone else's post, it's closer to an insult2.
The earliest documented use of tl;dr traces to 2002. According to the Oxford English Dictionary, the first known instance appeared in a message on the Usenet newsgroup rec.games.video.nintendo3. The abbreviation spread quickly through early 2000s forum culture, showing up on discussion boards like General Mayhem, 4chan, Something Awful, and FARK by 20032.
The oldest confirmed forum post using the term comes from GenMay user "waptang" on June 19, 20032. An Urban Dictionary definition was submitted on November 20, 2003, and later selected as Urban Dictionary's Word of the Day on May 16, 20052. These early definitions captured both uses of the term: the dismissive reply and the self-aware summary prefix.
Origin & Background
How It Spread
How to Use This Meme
tl;dr works in two main contexts:
As a dismissal: Reply to someone's long post with just "tl;dr" to signal you didn't read it and don't intend to. This is generally considered rude and is sometimes used as a troll tactic when someone can't come up with a real counterargument.
As a summary label: Place "tl;dr:" at the beginning or end of your own lengthy post, followed by a one-to-two sentence summary. This is the more common modern usage and is widely seen as good form.
Examples: - *Dismissive:* Someone writes a 500-word explanation. You reply: "tl;dr" - *Helpful:* You write a long post about a complex topic, then add: "tl;dr: the new update broke the save system, roll back to version 3.2 until they patch it"
The helpful version is basically writing "in summary" but with internet flavor. Most subreddits, Discord servers, and comment sections treat it as standard formatting for longer posts.
Cultural Impact
Fun Facts
The Oxford English Dictionary traced the term's first use to a 2002 Usenet post about Nintendo, making it older than many people assume.
Wikipedia's essay on tl;dr is itself quite long, running to several thousand words about the importance of concise writing. The irony is intentional.
Urban Dictionary's earliest tl;dr definition was submitted in 2003 but wasn't selected as Word of the Day until May 2005, a two-year wait.
The Reddit subreddit r/tldr was created by qgyh2, one of Reddit's earliest power users, who moderated dozens of major subreddits.
Frequently Asked Questions
References (5)
- 1TL;DRencyclopedia
- 2Urban Dictionary: tl;drdictionary
- 3tl;dr / TLDR - Know Your Memeencyclopedia
- 4Urban Dictionary: TLDRdictionary
- 5Wikipedia:Too long; didn't read - Wikipediaencyclopedia