You'll catch your death (of cold) British informal
The phrase could be used as "you'll catch your death" or "you'll catch your death of cold".
Used to advise that someone should wear warm or dry clothes, otherwise he or she will catch a very bad cold
Take your coat with you, otherwise you'll catch your death.
If you don't listen to me and go out at the moment, you'll catch your death of cold.
Used to describe a room/place so cold that you could hang meat in there like a frozen meat warehouse.
Really terrible.
1. To be extremely cold
2. To make someone exceedingly scared
To make one feel disgust or nausea
To be very wet
Because of forgetting bringing an umbrella, I look like a drowned rat when it rains.