Seriously. Do you have any reason why you shouldn't cut a hole in a piece of bread, and then jam that bread onto your cat's face?
Think about it.
While you think, here's a picture:
You should probably get on this really soon, before it becomes an old thing and everyone on the internet laughs at you because you cut a hole in some bread and put it on your cats face, when everyone knows the cool thing to do is take a picture of your dog wearing fishnets.
As the site itself says - it's the hippest meme. You want to be hip, don't you?
Now get out there and bread up some fuckin meow-meows.