Maybe it comes from standing upside down:
Hussey declined the charity singles being offered by Yousuf and instead looked to pierce the boundaries with drives that seldom left the carpet. He entered the nineties with back-to-back cover-driven fours off the bowling of Danish Kaneria and sealed his first ton of the summer with a glorious straight drive off Umar Gul. Hussey punched the air in delight upon reaching the milestone, acutely aware of the innings’ importance in the context of the match. Siddle, meanwhile, batted with tremendous discipline and restraint to raise his highest Test score of 38.
Oh. It seems that this was an article about some class of sport.