How did The Clash get their name?

Paul Simonon was the one who came up with the band's name after they had briefly dubbed themselves the Weak Heartdrops and the Psychotic Negatives. He later explained the name's origin: "It really came to my head when I started reading the newspapers and a word that kept recurring was the word 'clash', so I thought 'the Clash, what about that,' to the others. And they and Bernard, they went for it."