Also found in: Thesaurus, Medical, Idioms, Encyclopedia, Wikipedia.
A stupid person; a dolt.
[Reduplication and alteration of dumb.]
a stupid person.
[appar. reduplication and resp. of dumb]
a hollow-nosed or soft-nosed bullet that expands on impact, inflicting a severe wound.
[1895–1900; after Dum-Dum, suburb of Calcutta, India, where the bullets were made]
n (inf) → Doofie m (inf)