TL:DR

Meaning
•TL;DR is an online phrase commonly used in discussion forums as a response to previous posts that are deemed unnecessarily long and extensive; it’s short for Too Long; Didn’t Read. Due to its indiscriminate usage by many, tl;dr is frequently considered as spam or meaningless replies by those unaware of the term, as well as those who are familiar with the meaning.

Usage
•In cases of more courteous exchanges and serious discussions, TL;DR can be self-invoked by the original poster as a disclaimer to the readers and precedes a brief summary of the longer original text. On that note, if you don’t want your readers to be falling asleep at your long, boring blocks of text, do us all a favor and summarize it.

•Image macros of teal deers are sometimes used in place of “tl;dr”, due to it sounding close to “tee el dee are.”