Too Long; Didn’t Read
Its when there is a lot of detail that people may tend to ignore or not completely grok due to the sheer volume.
I typically use it in electronic communication to indicate a conscise summary for them to get the main take aways while also roviding details later for any one interested in them.
Subject: Findings on the status of Foo
TL;DR: We can’t use Foo 1.2 for this, we’ll need to update to Foo 2.0
Details: … lots of information here about why Foo 1.2 will not work and why Foo 2.0 will …