Saturday’s column posted unusual weather expressions and a questionable one today. Early warships were equipped with stacked iron cannon balls. A means of stacking 30 cannon balls in a squared “pyramid” configuration with 16 balls on the bottom to one on top was devised. It saved space; however, the ship’s movement sent the balls rolling over the deck and sometimes overboard. The solution was a metal plate called a “monkey” that included 16 round indentations. To prevent the iron balls from rusting, the monkey was made of brass, which contracts faster than iron in cold weather. The brass indentations shrunk when the temperature dropped and the cannonballs would lift off the monkey. Thus the expression, “It’s cold enough to freeze the (expletive deleted) off the brass monkey.” Fastcast: Freeze watch ’til 8.