look up any word, like blumpkin:
 
2.
Unemployed. UB stands for Unemployment Benefit, 40 is form 40. The unemployment filing device in the UK.
He's got no job....he's UB 40
by BRK December 21, 2005
 
1.
Mixed race Reggae band from Birmingham England.
had a shed load of hits especially in the UK.
Fontman Ali Campbell
got their name because they were all unemployed and signing on ub 40 forms, Before hitting the big time
by jar jar stinks May 22, 2006