"OMG" stands for "Oh My God," a popular expression used to convey surprise, excitement, or disbelief. It is commonly used in both spoken and written communication, especially in text messages and social media. The phrase has become a staple in internet slang, often abbreviated as "OMG" for convenience. The term gained widespread popularity in the early 2000s, particularly with the rise of text messaging and social media platforms like Facebook and Twitter. It is often used in a lighthearted context, but can also express genuine shock or concern. Over time, "OMG" has become a cultural phenomenon, appearing in various forms of media, including television shows and movies.