Green’s Dictionary of Slang

Diana Dors n.

[rhy. sl.; ult. UK actress and personality Diana Dors (1931–84)]

1. (bingo) the number 44, i.e. ‘all the fours’.

[UK]R. Puxley Cockney Rabbit.
[UK]Guardian G2 8 May 4: My favourite is 44. ‘All the fours, Diana Dors.’.

2. drawers, (female) underwear.

[UK]R. Puxley Cockney Rabbit.
[UK]Guardian G2 8 May 4: ‘Diana Dors’ was also 50s slang for women’s underwear.