Some common text symbols are LOL for laughing out loud, TMI for too much information, OMG for oh my God, IMHO for in my humble opinion and J/K for just kidding, according to NetLingo. Common emoticons include :), ;) and :(, which are a smiley face, wink and sad face, respectively.
The dictionary defines a text message as an electronic message sent from one cellular phone to another using the phone's network. Users often use abbreviations and symbols when speaking in text, such as the use of l8t instead of late. Users may also use emoticons to express their moods. Text symbols are also used in instant messages, a real-time form of electronic messaging.