to carry in the bosom or the sleeve / to wrap, to conceal
断袖之癖
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.
xiù