A Millwall brick is an improvised weapon made of a manipulated newspaper, used as a small club. It was named for supporters of Millwall F.C., who had a well-earned reputation for football hooliganism. The Millwall brick was allegedly used as a stealth weapon at football matches in England during the 1960s and 1970s. The weapon's popularity appears to have been due to the wide availability of newspapers, the difficulty in restricting newspapers being brought into football grounds, and the ease of its construction.