You remember Grimace, right? He's the giant purple character who was painted on the walls of the kids' area at Maccies, alongside other friendly characters such as Ronald McDonald and the Hamburglar.
Anyway, if you've seen that happy purple face on the wall of your local Maccies, perhaps you'd like to know that he's actually a gigantic representation of a taste bud.
Yep, he's a giant bump from someone's - or something's - tongue.
Obviously, stranger things have happened. After all, the other characters aren't exactly normal.
Mayor McCheese has a massive cheeseburger for a head, for crying out loud.
Still, this news is disturbing, and it comes right from the top - the McDonald's Corporation, no less.
According to award-winning McDonald's manager Brian Bates from Canada, Grimace is 'an enormous taste bud, but a taste bud nonetheless'.
CBC reports that: "The purpose of Grimace is to show the food tastes good."
So, does he rub it all over himself? What do the taste buds in his own mouth do?
It raises more questions than it answers.
In a tweet from 2014, this strange question was originally answered by the official McDonald's Corporation account, which posted: "Great question! #Grimace lore says he is the embodiment of a milkshake or a taste bud. What do you think?"
Naturally, this has some folks online pretty intrigued.
One person said: "My entire world view has been upended. I mean, I never knew what the hell Grimace was, but I didn't think it was THIS."
Another wrote: "Wait if he exists to show food tastes good then why is he 'Grimace' though?"
A third said: "The creature he escaped from has to be enormous. Bigger than anything we have on Earth."
This is the most troubling thing about it all, to be quite honest.
Anyway, aren't you glad you've now been furnished with this knowledge?
Enjoy your next McDonald's Happy Meal, kids.Featured Image Credit: McDonald's