Definitions by WxDub

Freeze the balls off a brass monkey 

Navy phrase for canon balls. The balls are placed in a round structure called a monkey. The plates had indentations to hold the balls on the bottom layer in place. The base was made of brass. When brass gets cold it contracts and the balls displaced.

It is so cold it would freeze the balls off a brass monkey.

Freeze the balls off a brass monkey by WxDub December 19, 2016