pour down (third-person singular simple present pours down, present participle pouring down, simple past and past participle poured down)
- (intransitive) To rain heavily.
- 1922, James Joyce, Ulysses Episode 12, The Cyclops
- A torrential rain poured down from the floodgates of the angry heavens upon the bared heads of the assembled multitude which numbered at the lowest computation five hundred thousand persons.
(to rain very heavily):