O:
　 OAUS = On An Unrelated Subject
　　OBTW = Oh, By The Way
　　OIC = Oh, I See
　　OICU = Oh, I See You
　　OMDB = Over My Dead Body
　　OMG = Oh My God/Oh My Gosh
　　OMIK = Open Mouth, Insert Keyboard
　　ONNA = Oh No, Not Again
　　OOC = Out Of Character
　　OOTB = Out Of The Box/Out Of The Blue
　　OT = Off Topic
　　OTOH = On The Other Hand
　　OWTTE = Or Words To That Effect
　　OZ = stands for "Australia"
　　P：
　　PEBCAK = Problem Exists Between Chair And Keyboard
　　PEM = Privacy Enhanced Mail
　　Pic = Picture
　　PIMP = Peeing In My Pants
　　PITA = Pain In The Ass
　　PLS/PLZ = Please
　　PMFJI = Pardon Me For Jumping In
　　PO = Piss Off
　　POS = Parents Over Shoulder
　　POV = Point Of View
　　PPL = People
　　Pro = Professional
　　PS = By The Way/Photoshop
　　T：
　　TAH = Take A Hike
　　TANSTAAFL = There Ain't No Such Thing As A Free Lunch
　　TARFU = Things Are Really Fed Up
　　TDTM = Talk Dirty To Me
　　TEOTWAWKI = The End Of The World As We Know It
　　TFN = Thanks For Nothin'
　　THX/TX/THKS = Thanks
　　TIA = Thanks In Advance
　　TIAIL = Think I Am In Love
　　TIC = Tongue In Cheek
　　TLA = Three Letter Acronym
　　TLGO = The List Goes On
　　TM = Trust Me
　　TMI = Too Much Information
　　TMTOWTDI = There's More Than One Way To Do It
　　TPTB = The Powers That Be
　　TSR = Totally Stuck in RAM
　　TTFN = Ta Ta For Now
　　TTT = That’s The Ticket/To The Top
　　TTUL/TTYL = Talk To You Later
　　TWHAB = This Won’t Hurt A Bit
　　TY = Thank You
　　TYVM = Thank You Very Much
来源:可可英语 //m.moreplr.com/read/201108/148347.shtml