plural of dexy; informal or slang term for dexamphetamine tablets or other dextrorotatory stimulant drugs.
Diminutive plural form derived from dex/dexy, with -ies suffix creating an informal, colloquial version. This slang term became widespread in mid-20th century drug culture, particularly in Britain and Australia.
Dexies were called 'purple hearts' when they came in heart-shaped pink or purple tablets—British and Australian subcultures developed whole vocabularies around specific pills, and these slang terms traveled internationally with the drugs themselves!
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