What does TLDR mean on Reddit?
TL;DR means “too long; didn’t read” on Reddit, where it can be a response to a long post that someone else wrote or the writer’s summary of their own post.
When people respond TL;DR on Reddit, it’s usually impolite, dismissive, and unnecessary.
However, if you write a long post on Reddit, you can include a TL;DR (a 1–2 sentence summary of the main idea or key takeaway) at the end of your post as a courtesy (e.g., “TL;DR Kansas City has a lot to offer for young, single professionals”).
When you encounter posts that are too long for you to read, why not try QuillBot’s free Summarizer? It will automatically show you the main points.