及埘行樂
[jí shí xíng lè]
This internet username, '及埘行樂', can be translated as 'seize the moment for joy'. It expresses a philosophy of life that encourages people to make full use of time and seize opportunities to have fun. '及' means 'taking the opportunity', '埘' refers to 'the time or moment', and '行樂' means enjoying oneself.