The reason why cucumber patters are called "men before chopping with a knife" is because when making this cold dish, the cucumbers are usually smashed with the back of a knife or chopsticks. This process is similar to chopping with a knife or punching. Ex-boyfriend, hence the name. In addition, there is also a saying that in ancient times, the behavior of a man chopping cucumbers was considered unlucky, so it is a humorous way of saying that cucumber chopping is called "a man before chopping with a knife".