你的益达你的绿箭
[nĭ de yì dá nĭ de lǜ jiàn]
Both Yidah (益达) and Li Jian (绿箭) refer to two popular brands of chewing gum in China - Extra (by Mars Inc.) branded as '益达' and Mentos mint chewing gum called '绿箭' in the Chinese market. Hence, this online nickname implies 'Your Extra, Your Mentos'. There's no deeper meaning behind it; rather, it might symbolize refreshment and closeness with someone special.