have illicit relations with sb.
In Chinese, Pinyin y ú Qi á ngzu ā nx ì means to tease a woman.
interpretation
To pass over; drill through. Over the wall, drilling. The act of teasing a woman.
source
Mencius Teng Wengong II: "if you don't wait for your parents' orders and the matchmaker's words, you can see each other through holes and follow each other beyond the wall, then your parents and countrymen are cheap."
have illicit relations with sb.
Extreme force and poor soldiers - jí wǔ qióng bīng
He who knows current affairs is a hero - shí shí wù zhě wéi jùn jié
be cut by knife and boiled in a cauldron - dāo jù dǐng huò