Potatoes (or taters) in the mould British noun phrase informal slang
There is no doubt that it's winter now. It's taters in the mould!
I have never in my life missed Summer this much because today is taters in the mould!
Used to advise that someone should wear warm or dry clothes, otherwise he or she will catch a very bad cold
Used to describe a room/place so cold that you could hang meat in there like a frozen meat warehouse.
1. To be extremely cold
2. To make someone exceedingly scared
If you say you freeze your tail off, you mean that you are extremely cold.
1. To make or be extremely chilly.
2. To terrify someone.
(Image Source: Internet)
This phrase derives from rhyming slang in which "taters (potatoes) in the mould" rhymes with "cold" and it is mostly used by the British.