On Instagram, “PMO” generally stands for “Puts Me On.” It is used to express appreciation when someone introduces the speaker to something new, beneficial, or enjoyable. For example, if a user shares a song recommendation and another user enjoys it, they might comment “PMO” to thank them for the introduction.
Using this abbreviation is a concise way to acknowledge the value of a recommendation or suggestion. It allows for efficient communication within the platform’s comment sections and direct messages. While not universally understood outside of online slang, it demonstrates a level of familiarity within certain digital communities.