It's raining pitchforks

it's raining pitchforks (and hammer handles)

old-fashioned It's raining extremely heavily. We can't hold the company barbeque today—it's raining pitchforks and hammer handles! We'll still have a good vacation, even if it's raining pitchforks the whole time.
See also: hammer, pitchfork, rain
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

It's raining pitchforks (and hammer handles).

 and It's raining cats and dogs.
Rur. It is raining very hard. Take an umbrella. It's raining pitchforks and hammer handles out there! Charlie: Have you looked outside? How's the weather? Mary: It's raining cats and dogs.
See also: pitchfork, rain
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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An old callin' pro once said, "All these guys think they have to kill ducks when it's raining pitchforks, but you give me a little sun, and we're gonna shoot some birds." Come rain or shine, the GHG Pro-Grade XDs, well, shine.
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