"#MEMEAct" can be translated into Arabic depending on the context, but first, we need to know what is meant by "MEME Act". If it refers to a specific law (for example, in the United States or the European Union), the accurate translation depends on that context.
However, in general:
MEME is an acronym and may refer to "Making Essentials More Empowering" or something similar, if it's part of a law's name.
Act means "law" or "legislation".
So, a general translation for #MEMEAct could be:
"#Law_of_Meme" or "#Law_MEME" (if MEME is a well-known acronym that is not translated).
Can you clarify the context in which this hashtag appeared?