cold as a mackerel

Adjective

 * 1)  Very cold (in temperature, emotionally, etc.).
 * 2) * 1920, Fire Service (Official organ of the Fire Marshals’ Association of North America, and Eastern Association of Superintendents of Fire and Police Telegraph), 6March, 1920, p.7,
 * “I tell you, Governor, that in those days they weren’t ashamed to have a little good liquor around to warm the insides of a man weary and as cold as a mackerel from an all night job.”
 * 1) Completely unconscious.
 * 1) Completely unconscious.
 * 1) Completely unconscious.
 * 1) Completely unconscious.