First introduced and popularized by George H.W. Bush, this southern-American slang means to toughen up and get ready for a rough time. This irritating phrase is now used regularily on CNN in conjunction with phony technical malfunctions and microphone tilts towards the wind in an effort to sensationalize their hurricane coverage.
"We're going to have to hunker down and fight the evil-doers" - George H.W. Bush
"Everyone is hunkered down and not a single person is around to speak with us" - CNN in a remote field at 4am during hurricane Wilma