Archaic British thieves' cant for an attractive or pretty woman.
Archaic British thieves' cant for an attractive or pretty woman. 'Dimber' meant handsome or pretty in the cant vocabulary of 17th and 18th-century English criminals, while 'mort' was the cant word for a woman. The compound was used admiringly rather than disparagingly, though it belongs entirely to historical criminal slang.
The bawdy song described a dimber mort who had the whole tavern under her spell.
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(obsolete, UK, thieves) Pretty; neat.
18th-century British thieves' cant — from Romani 'dimber' (fine, handsome). Used in flash vocabulary to describe a person or thing of admirable quality; the cant equivalent of 'top-notch.' Fell out of use after the 1800s but survives in historical crime fiction and slang dictionaries.
(obsolete, UK, thieves) The leader of a group of thieves or vagrants.
(obsolete, UK, thieves) A handsome man.
(archaic, UK, thieves) A pretty girl.