An initialism of "too long; did not read," used in online communications to indicate that one did not read an online article, post, comment, etc., because it was deemed too long or boring. Sometimes used as a modifier to describe such pieces of writing. Sometimes written "TLDNR"; often spelled in lowercase letters. I really want to write "TL;DNR" on all these novella-length rants my friend keeps posting on Spacebook. OK, I know that was a huge explanation. The tldnr version is that I got burnt out, and I need to take some time away from making ViewTube videos.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.