TL;DR stands for "Too Long; Didn't Read." It is an abbreviation used to summarize lengthy content or indicate that a text, article, or document is too long to read in its entirety. TLDR provides a short and concise summary, capturing the main points or highlights, allowing readers to quickly grasp the essence of the information without having to read through the entire piece. It is a common practice online, especially in tech forums or discussion boards, to help save time and encourage more efficient communication.