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An initialism of "do not resuscitate," a medical order meaning do not use CPR to preserve brain function or restore a normal heartbeat. Used especially in reference to end-of-life care. After consulting with his doctor, my grandfather decided to sign a DNR order. There is a DNR form in place, but the hospital still has the authority to intubate the patient.
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.