I：
　　IAC = In Any Case
　　IAE = In Any Event
　　IANAC = I Am Not A Crook
　　IANAL = I Am Not A Lawyer
　　IBT = In Between Technology
　　IBTD = I Beg To Differ
　　IC = I See/In Character
　　IDGAF = I Don't Give A F
　　IDGI = I Don't Get It
　　IDK = I Don't Know
　　IDKY = I Don't Know You
　　IDST = I Didn't Say That
　　IDTS = I Don't Think So
　　IFAB = I Found A Bug
　　IFU = I Fed Up
　　IGGP = I Gotta Go Pee
　　IIIO = Intel Inside, Idiot Outside
　　IIMAD = If It Makes An(y) Difference
　　IIRC = If I Remember Correctly
　　IIWM = If It Were Me
　　ILICISCOMK = I Laughed, I Cried, I Spat/Spilt Coffee/Crumbs/Coke On My Keyboard
　　ILY = I Love You
　　IMHO = In My Humble Opinion
　　IMNSHO = In My Not So Humble Opinion
　　IMO = In My Opinion
　　INMP = It's Not My Problem
　　INPO = In No Particular Order
　　IOH = I'm Outta Here
　　IOW = In Other Words
　　IRL = In Real Life
　　ISS = I Said So
　　ITM = In The Money
　　IYKWIM = If You Know What I Mean
　　IYSS = If You Say So
　　J：
　　J/C = Just Checking
　　J/K = Just Kidding!
　　J/W = Just Wondering
　　JAFO = Just Another Fing Onlooker
　　K：
　　K/KK = OK/OK, OK
　　KFY = Kiss For You
　　KISS = Keep It Simple Stupid
　　KIT = Keep In Touch
　　KMA = Kiss My Ass
　　KWIM = Know What I Mean
　　KX = kiss
　　KYPO = Keep Your Pants On
　　L：
　　L8R = Later
　　LD = Long Distance
　　LDTTWA = Let's Do The Time Warp Again
　　LLTA = Lots And Lots Of Thunderous Applause
　　LMAO = Laughing My Ass Off
　　LMK = Let Me Know
　　LOL = Laughing Out Loud/Lots Of Luck(Love)
　　LTIC = Laughing Til I Cry
　　LTNS = Long Time No See
　　LYL = Love Ya Lots
　　LYLAS = Love You Like A Sister
　　M：
　　M8T = Mate
　　MHOTY = My Hat's Off To You
　　MM = Market Maker
　　MorF = Male or Female?
　　MOTD = Message Of The Day
　　MOTSS = Members Of The Same Sex
　　MTFBWY = May The Force Be With You
　　MWBRL = More Will Be Revealed Later
　　MYOB = Mind Your Own Business
　　N：
　　N = And/Know/Now
　　NAK = Nursing At Keyboard
　　NAZ = Name, Address, Zip (also means Nasdaq)
　　NBD = No Big Deal
　　NBIF = No Basis In Fact
　　NFI = No Fing Idea
　　NFW = No Fing Way
　　NIFOC = Nude In Front Of The Computer
　　NM = Never Mind
　　NMP = Not My Problem
　　NMU = Nothing Much You
　　NOYB = None Of Your Business
　　NP = No Problem
　　NQOCD = Not Quite Our Class Dear
　　NRG = Energy
　　NRN = No Reply Necessary
　　NYCFS = New York City Finger Saluet