Beware of new mmm copycat
You're referring to the popular "Mmm... Copycat" meme!
For those who may not be familiar, the "Mmm... Copycat" meme typically involves a person or character (often a cartoon or animated character) saying "Mmm... [insert food item here]" in a seductive or enthusiastic tone, usually in response to a food item that they're particularly fond of.
The meme has been around for a while, but it seems like there's a new iteration of it popping up online, featuring a new character or design. It's always fun to see how creative people can be with this meme!
So, beware indeed - you might just find yourself getting hooked on the latest "Mmm... Copycat" craze!