originally a British youth subculture that evolved out of the teddy boys in the 1960s; wore black leather jackets and jeans and boots; had greased hair and rode motorcycles and listened to rock'n'roll; were largely unskilled manual laborers
"The local historian explained how the original rockers, with their greased hair and leather jackets, dominated the seaside towns in the 1960s before fading away."
plural of rocker
"The old armchair had worn-out rockers that made it squeak whenever I shifted my weight to get comfortable."