the Kray twins

Từ điển Oxford Advanced Learner 8th

the Kray twins [the Kray twins] BrE NAmE
two English brothers, Ronnie Kray (1934–95) and Reggie Kray (1934–2000), who led a group of criminals in the ↑East End of London in the 1960s. They were found guilty in 1969 of murdering two men and sent to prison for 30 years. Ronnie Kray died in prison.