In the story of Romance of the Three Kingdoms, Cao Cao asked the soldiers what fruit they used to quench their thirst.

Quench thirst by thinking of plum-masturbating with illusory hope

When Cao Cao led his troops to attack Wancheng (now Nanyang, Henan), the troops marched for a long time and could not find a place to draw water on the road. The soldiers are all thirsty. In order not to delay the March, Cao Cao pointed to a hill in front and said, "There is a large piece of Meilin in front, bearing many plums, which are sweet and sour and can quench your thirst." Hearing this, the soldiers all drooled. Finally reached the place where there is water ahead.