dumdumEtymologyFrom Dum Dum, a city in India where the type of bullet was developed, from Hindi दम दम (dam dam) (Bengali দমদম (domodom)), from Hindi दमदमा (damadmā, “tenaille, a raised mound or battery”).dumdum means A soft-nosed bullet that expands on impact to cause a gaping wound. Lexicurio rates it Sui generis — a strength score of 87 out of 100.nounA soft-nosed bullet that expands on impact to cause a gaping wound.“He related to us how the savages make bullets from the heart of a very hard wood cured by a special process. These bullets are only effectual when fired from a short range, and when they lodge in the flesh they explode like dumdum bullets.”An ignorant person; an idiot.