"IMO" is an internet slang initialism that stands for "in my opinion". It is often used in text conversations when someone is expressing their opinion. Teenagers use IMO in messages to clarify that what they are stating is their opinion, rather than a fact. The term can be spelled out in uppercase, and it is one of many acronyms used in texting, social media, and in other parts of digital culture. The use of "IMO" is common in spoken language as a slang.