黑咕隆咚 hēi gu lōng dōng 🔊 pitch-black + Keep this word Meanings hēi gu lōng dōng pitch-blackpitch-dark Its characters 黑hēiblackHSK 5咕gūfor the sound of a bird, an empty…隆lónggrand咚dōngboom (of a drum)