The Brummie accent is Britain's most comical, research has found.
A team of experts spent two months studying how regional accents influence how funny a person is deemed to be.
Received Pronunciation (RP) picked up the lowest score, amusing just 1.1 per cent.
The Birmingham accent, closely associated with comedians Frank Skinner, Jasper Carrott and Lenny Henry, came top with a 20.8 per cent score.
The Scouse accent, employed by Paul O'Grady's outrageous alter-ego Lily Savage, took second place with 15.8 per cent, and the Geordie accent, synonymous with TV duo Ant and Dec, made third place, amassing 14.3 per cent of the vote.
Researchers asked 4,000 people to listen to the same joke in 11 UK regional accents to discover which they found most amusing.
The Mancunian accent, which tickled the funny bones of just 2.1 per cent and Glaswegian (3.4 per cent), joined RP at the bottom of the table.
The research, led by comedy expert Dr Lesley Harbidge from the University of Aberdeen, also found that the funniest accents - Brummie, Scouse and Geordie - were also deemed the least intelligent.
RP was seen as most effective while the Welsh accent was seen as least suited to withering one-liners, in the style of Jimmy Carr.
The Cockney accent was deemed most effective in terms of risque humour in the study, which was commissioned by the Paramount Comedy Channel. * The test joke was chosen by Dr Harbidge for reflecting traditional British stand-up comedy.
With no notion of cleverness on the part of the teller, the listener's concentration is focused on the lilt of the words themselves.
It goes: Workmen are eating sandwiches, balancing on a girder miles above the ground:
"You ever get that urge, Frank? It begins with looking down from 50 storeys up, thinking about the meaningless of life, listening to dark voices deep inside you, and you think, 'Should I? . . . Should I? . . . Should I push someone off?