List of hashtag / acronym use in social media

you might not know it

wcw - woman crush wednesday
ootd - outfit of the day
tbt - throwback thursday
YOLO - you only live once
MCM - man crush monday
IGERS - instagrammers
POTD - Pic of the day

Technical Twitter abbreviations:
•    CC = Carbon-copy. Works the same way as email•    CX = Correction•    CT = Cuttweet.  Another way of saying partial retweet•    DM = Direct message. A direct-message is a message only you and the person who sent it can read•    HT = Hat tip. This is a way of attributing a link to another Twitter user•    MT = Modified tweet. This means the tweet you're looking at is a paraphrase of a tweet originally written by someone else•    PRT = Partial retweet. The tweet you're looking at is the truncated version of someone else's tweet.•    PRT = Please retweet, a plea to put at the end of a tweet•    RT = Retweet. The tweet you're looking at was forwarded to you by another user
Industry Twitter abbreviations:•    EM = Email Marketing•    EZine = Electronic Magazine•    FB = Facebook•    LI = LinkedIn•    SEO = Search Engine Optimization•    SM = Social Media•    SMM = Social Media Marketing•    SMO = Social Media Optimization•    SN = Social Network•    SROI = Social Return on Investment•    UGC = User Generated Content•    YT = YouTube
Conversational abbreviations:•    # = start to a hashtag, or a way of organizing subjects on Twitter•    •    AB/ABT = About•    AFAIK = As far as I know•    AYFKMWTS = Are you f---ing kidding me with this s---?•    B4 = Before•    BFN = Bye for now•    BGD = Background•    BH = Blockhead•    BR = Best regards•    BTW = By the way•    CD9 = Code 9, parents are around •    CHK = Check•    CUL8R = See you later•    DAM = Don’t annoy me•    DD = Dear daughter•    DF = Dear fiancĂ©•    DP = used to mean “profile pic”•    DS = Dear son•    DYK = Did you know, Do you know•    EM/EML = Email•    EMA = Email address•    F2F /FTF = Face to face•    FB = Facebook, F--- buddy•    FF = Follow Friday•    FFS = For F---‘s Sake•    FML = F--- my life.•    FOTD = Find of the day•    FTW = For the win, F--- the world•    FUBAR = F---ed up beyond all repair (slang from the US Military)•    FWIW = For what it's worth.•    GMAFB = Give me a f---ing break•    GTFOOH = Get the f--- out of here•    GTS = Guess the song•    HAGN = Have a good night•    HAND = Have a nice day•    HOTD = Headline of the day•    HT = Heard through•    HTH = Hope that helps•    IC = I see•    ICYMI = "In case you missed it," a quick way to apologize for retweeting your own material•    IDK = I don't know•    IIRC = If I remember correctly•    IMHO = In my humble opinion.•    IRL = In real life•    IWSN = I want sex now•    JK = Just kidding, joke•    JSYK = Just so you know•    JV = Joint venture•    KK = Kewl kewl, or ok, got it•    KYSO = Knock your socks off•    LHH = Laugh hella hard (stronger version of LOL)•    LMAO = Laughing my ass off•    LMK = Let me know•    LO = Little One (child)•    LOL = Laugh out loud•    MM = Music Monday•    MIRL = Meet in real life •    MRJN = Marijuana•    NBD = No big deal•    NCT = Nobody cares, though •    NFW = No f---ing way•    NJoy = Enjoy•    NSFW = Not safe for work•    NTS = Note to self•    OH = Overheard•    OMFG = Oh my f---ing God•    OOMF = One of my friends/followers •    ORLY = Oh, really?•    PLMK = Please let me know•    PNP = Party and Play (drugs and sex)•    QOTD = quote of the day•    RE = In reply to, in regards to•    RLRT = Real-life re-tweet, a close cousin to OH•    RTFM = Read the f---ing manual•    RTQ = Read the question•    SFW = Safe for work•    SMDH = Shaking my damn head, SMH, only more so•    SMH = Shaking my head•    SNAFU = Situation normal, all f---ed up (slang from the US Military)•    SO = Significant Other•    SOB = Son of a B----•    SRS = Serious•    STFU = Shut the f--- up!•    STFW = Search the f---ing web!•    TFTF = Thanks for the follow•    TFTT = Thanks for this tweet•    TJ = Tweetjack, or joining a conversation belatedly to contribute to a tangent•    TL = Timeline•    TLDR/TL;DR  = Too long, didn’t read•    TMB = Tweet me back•    TT = Trending topic•    TY = Thank you•    TYIA = Thank you in advance•    TYT = Take your time•    TYVW = Thank you very much•    W or W/ = With•    W/E or WE = Whatever or weekend•    WTV = Whatever•    YGTR = You got that right•    YKWIM = You know what I mean•    YKYAT = You know you're addicted to •    YMMV = Your mileage may vary•    YOLO = You only live once•    YOYO = You're on your own •    YW = You're welcome•    ZOMG = OMG to the max
Common hashtags and chats:•   #BrandChat = private chat about branding•    #CMAD = Community Manager Appreciation Day•    #CMGR = Community Manger topic chat•    #FB = The user is sending this post to Facebook•    #FF = Short way of saying Follow Friday, or a recommendation that others follow the user•    #in = the user is sending this post to LinkedIn•    #LI = This user is sending this post to LinkedIn•   #LinkedInChat = For general use questions and questions about marketing/self-promotion on 
•   #Mmchat = Marketing and social media chat
•   #Pinchat = a chat for maximizing Pinterest use
•   #SMManners = Social media manners chat
•   #SMMeasure = For discussion of analytics and mesaurement, lead by MarketWire and Syomos
•   #SMOchat = Social Media Optimization chat lead by Stanzr
•   #SocialChat = Social media chat lead by SocialParle.
•   #SocialMedia = an all-inclusive chat for subjects big and small in the subject of Social Media


credit to SocialMedia today