The phenomenon of students using code words to discuss the appearance of others is usually related to the social psychology of adolescents, the sense of belonging to the group, and the temptation of privacy boundaries. The following are the specific analysis and common types of code words： **1. The deep motivation for using code words** 1. **Avoid social risks**: Direct evaluation may cause conflicts. For example, use "little panda" to refer to classmates wearing braces, and eliminate aggressiveness through cute labels. 2. **Build a group password**: The online slang systems such as "zqsg (true feelings)" and "expansion" created after 00 extend to reality, forming a barrier to intergenerational communication. 3. **Test the boundaries of authority**: Under the supervision of teachers, use the "geography class representative" to refer to tall students (because geography involves the concept of altitude) to avoid the risk of classroom discipline. **2. Analysis of the morphology of typical code words** 1. **Cross-dimensional mapping** -Anime terrier: "Kakashi" refers to the person who always wears a mask ("Naruto" character) -Game terminology: "Blood bar empty" describes pale complexion, "Skin paint" refers to taking off makeup 2. **Subject symbol transformation** -Mathematics: "√3" means short height (≈1.732meters) -Chemistry: "Fe" is homophonic with "Fat" -Physics: "Large mass" alludes to being fat 3. **Social metaphor -Catering symbols: "Whole sugar milk tea" describes the sweetness of tea, "half sugar" refers to the light temperament -Commercial terms: "High-definition version of Liu Yifei" (high-end customization) ridicules over-dressed people **3. The social evolution behind the phenomenon** The essence of this language system is the deconstruction and reorganization of the reality evaluation system by young people. According to an anonymous survey by a middle school, 62% of students believe that code words can reduce the guilt of talking about others, and 35% admit that they will continue to update their vocabulary to prevent it from being deciphered. It is worth noting that this kind of communication has the risk of sliding from entertainment to malicious slander. When abbreviations such as "SSDD (thin and short)" evolve into long-term labels, it may constitute tacit bullying. Educators should note: excessive intervention may strengthen the iteration of code words. It is recommended to guide students to recognize the boundaries of language violence through melodrama and guide creativity to more constructive forms of expression.