Merchant of doom/gloom phrase
A person who is pessimistic and therefore forecasts that something bad or unpleasant will happen.
John is a merchant of doom. He is always predicting that the country will be hit hard by the recession.
A: These reforms will only deepen the recession. B: Come on, bro. Don't be a merchant of doom.
The merchants of doom thought that a flood would cover the Earth’s surface.
The origin of this phrase is not clear.
Used to raise caution
Always remember to put safety first whenever you drive.