WYM is an acronym that stands for "what you mean" or "what do you mean". It is a slang term used in texting and social media to ask for clarification or to begin a rhetorical question. Sometimes, WYM can also mean "watch your mouth," but the intended meaning depends on the context. The abbreviation is usually written in capital letters, although some may use lowercase letters. WYM is a helpful acronym, especially in text-based conversations, and a few similar acronyms exist that can be used in order to get a better idea of what someone is trying to say.