To suddenly, and with seemingly no cause, spill one's shit all over the place. Those who "Pull Kelly's" are often repeat offenders, and cannot be trusted to carry or otherwise posses plates of food, bowls of soup, glasses, mugs, any other similar containers, or basically anything that would be really inconvenient to clean.
WOW! Way to Pull a Kelly and spill pasta and kool aid all over the nice white carpet!
Give a hostile account of something Democratic, untrue from beginning to end in its critical points. The account is usually adapted from fake news without conscious recognition that it is fake.
The term derives from one unfortunate White House press conference.
He tried to pull a general kelly, but it was an unlucky general kelly because the video of the event immediately went viral.