The superlative form of dopy, meaning the silliest, most stupid, or most affected by drugs.
From 'dopy' (also spelled 'dopey'), which came from 'dope' (a drug or stupid person), itself from Dutch 'doop' meaning sauce or liquid. The suffix '-iest' makes it superlative.
The word 'dope' traveled from Dutch kitchens (where doop meant sauce) all the way to American slang for drugs and foolishness—a wild journey that shows how language borrows from trade and street culture.
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