Okay, so this little "lol r4nd0m m3m35t3r XDXDXDXD" I know keeps spamming me with a bunch of useless, irritating, and non-funny "memes," to which my response is asking her to kindly not do that, and to act like she is a rational human being who isn't constantly trying to grab attention by pretending to be funny. This is a serious question I need answered and I really want to put a stop to this. The "lol random" thing she's going through is hopefully a phase and she'll maybe grow out of it, but seeing her act like this out of nowhere after 3-4 years of me knowing her, and her not acting like this really does annoy me. I've asked her to stop sending me these things and to kindly stop talking about it all the time (as I don't like it), but she never listens. Help? (Please note: I know there is another question like this, but none of the answers seemed to fit exactly what I needed)
I think the only thing likely to be effective is the obvious thing. Tell her you will block her for 3 days every time she sends something stupid. Then do it.
She'll be mad; she'll tell you that you are over-reacting. You aren't. You made a reasonable request, and she ran right over it. So stick to your guns.