Planting strawberries is a buzzword on the Internet. Strawberry cultivation generally occurs between couples and couples. The common part is the neck, and the symptom is "mechanical purple spot". Simply put, it is a hickey.
The extended meaning is hickey. When kissing each other's neck or a certain part, the blood vessels dilate, leaving red marks, much like strawberries, so it is called planting strawberries. The most common thing is that the skin in this part is thinner. If the kiss is fierce, it is easy to leave obvious marks. Planting strawberries leaves this mark on someone.