on your bike!
1 go away!
2 take action! British informal
☞ Sense 2 became a catchphrase in 1980s Britain, when it was used as an exhortation to the unemployed to show initiative in their attempt to find work. It was taken from a speech by the Conservative politician Norman Tebbit in which he said of his unemployed father: 'He did not riot, he got on his bike and looked for work.'