Tl;dr can give a genuine summary of a much longer piece—the gist, the big takeaway, the moral of the story.

This analysis 🙌 🙌. Tldr: string theory is a prime example of how social power dynamics have a huuuuuge impact on what science gets done. https://t.co/AZPW8RjnOa

— Jenna Freudenburg (@TheJFreud) October 25, 2017

This is the schtick of one film review site, TL;DR Movies, which opens each review with a brief judgment before going into its longer view, like this tl;dr on Avengers: Infinity Wars: “TL;DR – Infinity War brings everyone together and then tears them apart leaving you with a foreboding as to what will happen next, but also an excitement as they try to work it all out.”

People might also use tl;dr in personal accounts along the lines of “to make a long story short” or “to get to the point”:

Tl;dr can also issue a snarky take on a longer, more complex topic, as if boiling it down to its essence.

TLDR: the “women take on average 20 minutes to orgasm” statistic is literally non-existent. ¯\_(ツ)_/¯ https://t.co/x3qQFDm2e9

— Annemie (@writersbleedink) May 16, 2018

One might dismiss a document seen as overly long with a tl;dr, like those ridiculously long and dense “Terms of Service” forms we always sign without ever reading.

In case you ever wondered how long would it take..TLDR;#infosec #GDPR #womenintech pic.twitter.com/44j7Pq53Yp

— Women Techmakers Berlin (@wtm_berlin) May 16, 2018

Occasionally, tl;dr can stand for too lazy, didn’t read, sometimes used when a person makes fun of their own short attention span.

Based on its form, others humorously call and imagine tl;dr as a teal deer, a kind of spirit animal guiding us through the wilderness of too much internet content.

More examples of TLDR:

“If you’re super lazy and didn’t read the TL;DR version, here’s a TL;DR of the TL;DR: getting old kinda sucks; we change (sometimes for the worse) and the people we love and used to recognise change around us.”
—Bradley Russell, GamesRadar+, January, 2018

Did you mean TL;DR?