dong UK /dɒŋ/US /dɔŋ/noun 7verb 1forms 4 noun7 •The currency of Vietnam, 100 xus. Symbol: ₫ •(historical) The currency of South Vietnam, 100 xus. Symbol: Đ. •(slang, vulgar) a penis"That American girl was after you too, wasn't she?" "She didn't mean anything she said. She was just after your dong. But it's mine." "For sure, Mary." — 1955 •A low-pitched, metallic ringing sound. •(slang, vulgar) A dildo, specifically a synthetic anatomical replica of the penis. •A submunicipal administrative unit of a city in North or South Korea. •(slang) A fool. verb1 •To make a low-pitched, metallic ringing sound. formsdonged · donging · dongs · đồngs