菇凉总是虚伪少年总是花心
[gū liáng zŏng shì xū wĕi shăo nián zŏng shì huā xīn]
The term '菇凉' (girls) here are depicted as pretentious, hiding their true feelings or intentions. '少年' (boys) are portrayed as easily distracted or fickle-hearted. This reflects the stereotype that girls can be false while boys tend to pursue multiple relationships or interests.