Sideburns are patches of facial hair grown on the sides of a man's face, extending from the hairline to below the ears and worn with an unbearded chin. The term "sideburns"'s a 19th century corruption of the original burnsides, named after American Civil War general Ambrose Burnside, a man known for his unusual facial hairstyle that connected thick sideburns by way of a moustache but left the chin clean-shaven. In British slang, sideburns are referred to as "bugger's grips" perhaps subversively… (More on Sideburns)