Starting just after 9 a.m. PDT on Monday, the fast-food company's Twitter picture was changed to a McDonald's logo, and the account tweeted that it had been sold to rival McDonald's.
Some posts from the account have contained racial epithets, references to drug use and obscenities. The account has also tweeted: "if I catch you at a wendys, we're fightin!"
By about 11:30 a.m., the account had been disabled.
Perhaps the only bright spot for Burger King is the fact that, according to Buzzfeed, the account had gained 30,000 new followers before it was temporarily shut down.
Burger King Worldwide Inc., which is based in Miami, did not immediately respond to a message seeking comment.
The Associated Press contributed to this report.