A diet meme refers to an old meme that is still kind of funny or is still in the general publics mind. A diet meme can also apply to an old meme you haven't heard about. A good way to tell if a meme is a diet meme check to see if the meme has appeared on the Ellen Show.
Friend: Hey, you remember Harambe?
Me: Wow! That's a diet meme.
Friend: I know right . Rest In Peace my sweet baby boy.
Me: Wow! That's a diet meme.
Friend: I know right . Rest In Peace my sweet baby boy.
by FrozenEnoch January 23, 2017