TL;DR or TLDR stands for "Too Long; Didn't Read." TLDR can be used to express that a text is too long, identify a short summary of a long text, or ask for a summary of a long text. Unlike most internet acronyms, TLDR (or TL;DR) has found its way into news articles, professional emails, and even Merriam-Webster's Dictionary.

TL;DR TL;DR or tl;dr, short for " too long; didn't read ", is internet slang often used to introduce a summary of an online post or news article. It is also used as an informal interjection commenting that a block of text has been ignored due to its length.

What does TL;DR mean? TL;DR (also sometimes seen without the semicolon as TLDR) means “too long; didn’t read.” It’s an abbreviation that you’ll frequently find at the end of internet communications, usually ones with a lot of text.

"TL;DR" stands for " too long, didn't read," according to Merriam-Webster. The slang has several uses, depending on its context. The primary use is when something – whether a social media post or book – is lengthy and would require a lot of time to read.