Burger King hid a Big Mac in every promotional picture they took this year as a cheeky swipe at their fast food rivals.
The restaurant chain's social media chain revealed the epic trolling as we head towards the end of 2019.
They revealed they have spent the year poking fun at their frenemies, and have revealed exactly where the Big Macs were, reports MEN.
In a video, they say: "You see, throughout 2019, we were keeping a bit of a secret. Actually, a Whopper of a secret.
"Everybody knows our burger is more generous than that other burger.
"So we thought we'd prove it, by hiding a 'Big' Mac behind every Whopper we photographed.
"That's right. There was a 'Big' Mac in every single Whopper advert in the UK in 2019."
To help prove their point, the video then shows all ads, from billboards to Instagram posts, that they claim also features the McDonald's burger.
"Such a shame you couldn't see it," they says as they begin to end the brutal post.
It then shows a hand reaching behind a Whopper to pick up a McDonald's burger which had been there all along.
"So there you are. Confession made. Our secret's out. Thank you Maccy D's for having our back in 2019."
