What does MOO stand for online?

My own opinion

MOO is a quick way to preface that the following or preceding opinion is your own. It is similar to IMO but is less common, probably because it looks like the sound a cow makes.

There are many times in which you might use MOO, primarily online in messages, forums, and social media. For example, your friend may send you a pic of her in her new dress, and you might message her, "MOO, that new dress makes you look like a cow."

Since MOO is the same as the sound a cow utters (not udders), you might confuse the recipient if they are not slang-savvy. Therefore, use MOO with discretion.


MOO is that Yamaha keyboards sound better than similar Korg models

MOO is just my opinion

Related Slang


Updated September 27, 2022

MOO definition by

This page explains what the acronym "MOO" means. The definition, example, and related terms listed above have been written and compiled by the team.

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