The word "ZOMG" is an internet slang term that is commonly used to express excitement or disbelief. It is a variation of the popular phrase "OMG" (Oh My God). The spelling of the word "ZOMG" is interesting as it includes the letter "Z" which is not traditionally found in the phrase "OMG". The letter "Z" in "ZOMG" is pronounced as /z/ in IPA phonetic transcription. So, the word is pronounced as "Zoh My God". Its usage has increased in the past few years on social media platforms and instant messaging applications.