colder than... adj.
see also under cold as... adj.
[1950s+] (US) extremely cold.
[1950s+] (US) very cold.
1. [1930s+] of weather, very cold.
2. [1960s] of emotions, very unfriendly.
3. [1960s] sexually frigid.
see cold as Kelsey’s nuts under Kelsey’s nuts n.