Nobody knows for certain where the phrase 'it's raining cats and dogs' comes from, though one possibility is that it originates from the 17th century in England when heavy rains would cause debris of all kinds including animals to wash out of the gutters.
Other languages have similarly expressive idioms for a heavy downpour.
The phrase might have its roots in Norse mythology, medieval superstitions, the
... The first recorded use of a phrase similar to “raining cats and dogs” was in the
... for why people say “it's raining cats and dogs” to describe a heavy downpour.
www.urbandictionary.com/define.php?term=raining cats and dogs
A literal explination for raining cats and dogs is that during heavy rains in 17-
century England ... hyperbole comes from a Greek saying, similar in sound,
meaning "an unlikely occurrence," and that ... Geeze, its raining cats and dogs
Raining cats and dogs - the meaning and origin of this saying. ... The phrase isn't
related to the well-known antipathy between dogs and cats, which is exemplified
in ... of contemporary London society and its meaning has been much debated.
Feb 26, 2011 ... ... it's raining cats and dogs; I've heard two versions of the meaning of the ...
phrase may have been used just for its nonsensical humor value[.] ...
Sep 19, 1998 ... ... 'it's raining cats and dogs' is a bit outdated, but what is its origin? ... that it is a
corrupted version of a rare French word, catadoupe, meaning a ...
Jun 16, 2010 ... Best Answer: The explanation I was given years ago was that when people had
thatched roofs or roofs made very in a very amateurish fashion ...
idioms.thefreedictionary.com/It's raining cats and dogs!
Definition of It's raining cats and dogs! in the Idioms Dictionary. ... something that
you say when it is raining very heavily It's raining cats and dogs out there! ... Want
to thank TFD for its existence? ... itsy · itsy-bitsy · itty-bitty · I've done my do · I've
got to fly · I've...
it's raining cats and dogs! definition, meaning, what is it's raining cats and dogs!:
something that you say when it is raining heavily. Learn more.
it's raining cats and idioms ... Use: We use this idiom to say that is is (or was)
raining VERY heavily. (It doesn't mean that cats and dogs are falling out the sky!).