lóng dòng
cave
natural cavern (in limestone)
lóng dōng
midwinter
the depth of winter
Qīng Lóng
Azure Dragon, one of the four symbols of the Chinese constellations, also known as the Azure Dragon of the East 東方青龍|东方青龙[Dōng fāng Qīng lóng] or 東方蒼龍|东方苍龙[Dōng fāng Cāng lóng]
duàn xiù zhī pǐ
lit. cut sleeve (idiom); fig. euphemism for homosexuality, originating from History of Western Han 漢書|汉书: emperor Han Aidi (real name Liu Xin) was in bed with his lover Dong Xian, and had to attend a court audience that morning. Not wishing to awaken Dong Xian, who was sleeping with his head resting on the emperor's long robe sleeve, Aidi used a knife to cut off the lower half of his sleeve.