Here’s a quick guide to find out:
BRB
Big reference books
TMI
Tagging my index
LOL
Learn other languages
NGH
Need graphic here
TTFN
Try this font now
IDK
Insert DITA keyword
WTF
Write the facts
ICYMI
I corrected your mistakes, incidentally
TTYL
The things you learn
TL;DR
Technical literacy definitely rocks
FTW
Fantastic technical writing
🙂