It was a slow PRESIDENT'S DAY holiday... until the BURGER KING official, and verified TWITTER ACCOUNT got HACKED!

The Miami-based Burger King didn't just get hacked by anyone... no, allegedly, they got hacked by MC DONALDS!

And... the hackers are responding as BURGER KING to people Tweeting at 'em.

Now if these are shenanigans from BK to get some attention... it's genius! If not, well, it's still genius!

The account has been suspended at this hour by Twitter. More breaking BK news as it happens... right here!