UB40 /ˌjuː biː ˈfɔːti $ -ˈfɔːr-/ BrE AmE noun
1 . formerly in the UK, an official card which showed that the person named on the card was receiving ↑ unemployment benefit (=money paid by the government to someone who does not have a job) . It is now called an ES40.
2 . the name of a British ↑ pop group