薄荷少年透心凉柠檬少女满心酸
[bó hé shăo nián tòu xīn liáng níng méng shăo nǚ măn xīn suān]
This net-name contrasts two personas, the boy with the refreshing, cool quality like mint (a symbol of purity and simplicity) while the girl feels sour and bittersweet like lemon. It implies the differing natures or experiences of youth - cool/calm vs. heartfelt pain or unspoken bitterness. A metaphor for different emotional aspects of growing up.