OMG full form is Oh My God. OMG speaks when we are shocked to see something we have never seen before. It is also called in this way Oh My Goodness or Oh My Gosh. In chatting or in daily routine, we speak OMG when we are surprised, shocked or very happy. It is used even when you are faced with situations you never imagined and then you say Oh My God.
It is mostly used in Movies or emergencies. According to Wikipedia on September 28, 2012 Akshay Kumar made a film Oh My God, that movie become very famous then the OMG word become very popular. But OMG is mostly used on social media while chatting or expressing and it is an internet slang.
There are various full form of omg but depend on situation. Some of here are in below.
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