The Phrase Finder
http://www.phrases.org.uk
1000 English sayings, phrases and idioms at your fingertips. Whether you want to resolve a friendly argument over how a saying or phrase originated or whether you just enjoy words, you'll probably find something here to interest you.
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The Phrase Finder - Dictionary Index
R: 1
Rabbit and pork
Rack and ruin
Raining cats and dogs
Raining stair rods
Raise Cain
Raspberry tart
Rat arsed
Read the riot act
Red letter day
Rack and ruin
Raining cats and dogs
Raining stair rods
Raise Cain
Raspberry tart
Rat arsed
Read the riot act
Red letter day