Sleeping on the couch
Chinese idiom, Pinyin is w ò t à h ā nshu ì, which means that other people are sleeping beside their beds. This is a metaphor for others' wanton encroachment on their own interests. It's from Cheng Shi, Xu Xuan's appointment.
The origin of Idioms
For song Yue Ke's Cheng Shi Xu Xuan's Employment: "how can others sleep peacefully on the side of the couch?"
Sleeping on the couch
pull up enemy flags and behead enemy generals on the battle field - qiān qí qǔ jiàng
unjust cause finds scant support - shī dào guǎ zhù
lead the horse group with a thoroughbred horse - shuài mǎ yǐ jì