Smoking, drinking and playing mahjong.

Smoking, drinking and playing mahjong, the next sentence is: "chat online and have sex."

This is a one-liner spread among the people, who often plays jokes on friends during leisure and entertainment. It means to describe a person's three hobbies, smoking and drinking, including playing mahjong. Accordingly, online dating and chatting are aimed at the date. In fact, there is no necessary connection between the two, and most of them appear in the form of rhyme and entertainment effect.

a two-part allegorical saying

One-liners are also called two-part allegorical sayings The name "Xiehouyu" first appeared in the Tang Dynasty. The so-called "five evils after the body" (a kind of "evil after" style poem) was mentioned in the old Tang Dynasty book "Gui Zhengzhuan". But as a language form and expression, it appeared as early as the pre-Qin period.

For example, "The Warring States Policy Chu Ce IV": "It is not too late to mend." It means it's not too late to mend the sheepfold after losing the sheep. This is the earliest two-part allegorical saying that people see today.