Well, this is not exactly helping parents to cut down on screen time!
Does your 11-year-old know what a "meme" is? This would be a good opportunity for some parent-child safe internet exploring. Look online to see the history of memes and explore some famous memes. Look at the "Webby Awards". Choose a meme that your child enjoys!
ETA: For the responses saying that it seems likely the 11-year-old knows what a meme is - well then, why is mom asking for help here? Maybe mom needs to study up on memes.... Either way, as I wrote above, "a good opportunity for some parent-child safe internet exploring", a chance to learn together!