Words at Play : Top 10 User-Submitted Words, Vol. 7
Definition:
(verb) : to create a parody Web site or social media page using the official brands and logos of a company
Example:
"The temptation to brandjack a company stems at least in part from the perception of a large brand as monolithic, unresponsive, and unassailable. It's a lot more fun to go after a player that deserves to be taken down a few pegs; this has been a basic rule of satire since the ancient Greeks." Eric Anderson, blog post on iMediaConnection.com, July 11, 2011