Ohemg is a phonetic spelling of the initialism OMG. According to the provided reference, OMG stands for "oh my God; oh my gosh". Therefore, "ohemg" is simply another way to represent the same expression.
In essence, "ohemg" serves the same purpose as "OMG" and is used to express:
- Surprise
- Shock
- Excitement
- Disbelief
It is commonly used in informal online communication like texting or social media.