Rabbit and pork Rack and ruin Rack your brains Rag, tag and bobtail Raining cats and dogs Raining stair-rods Raise Cain Raspberry tart Raze to the ground Rat arsed Read between the lines Read the riot act Real McCoy Red-handed (caught) Red herring Red in tooth and claw Red letter day Red sky at night ... Red tape Reduplication Religion is the opium of the people Rhyme nor reason Rhyming slang Richard of York gave battle in vain Richard the Third Riddle wrapped up in an enigma - A Riding shotgun Ring a ring o'roses, a pocketfull of posies, atishoo, atishoo, all fall down Ring down the curtain Ring-fencing Ring the changes Rinky-dink Rise and shine Road less travelled - The Road apples Road rage Romeo, Romeo, wherefore art thou Romeo? Rose by any other name would smell as sweet - A Rose is a rose is a rose Rosie Lea Rough diamond Round Robin Route one Rule of thumb Rum do Rumpy-pumpy Run a mile Run amok Run of the mill Run out of steam Run the gauntlet