There's reall so many acronyms floating around that you really should just burn a feat for Skill Focus

Acronym Recognition); max out the skill if you can
Some common ones are:
RAW: Rules As Written
YMMV: Your Mileage May Vary(which does for those of us who don't use miles)
IMO/IMC: In My Opinion/Campaign
AFAIAC: As Far As I Am Concerned
AFAIK: As Far As I Know
IMHO: In My Humble Opinion (also IMNSHO: In My Not-So-Humble Opinion)
SO: Significant Other
IYKWIMAITYD: If You Know What I Mean And I Think You Do
WYSIWIG: What You See I What You Get
There is most definitely more, but this is off the top of my head.