it's raining harder than a cow pissing on a flat rock

it's raining harder than a cow pissing on a flat rock

rude slang It is raining very intensely. I hope you have your umbrella, because it's raining harder than a cow pissing on a flat rock out there.
See also: cow, flat, hard, on, piss, rain, rock
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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