每个月只有大姨妈陪你
[mĕi gè yuè zhĭ yŏu dà yí mā péi nĭ]
In Chinese culture, ‘DaYiMa’ (Auntie Big) refers to menstruation in slang. So, this means 'Every month only Auntie Big comes to keep you company.' Reflecting wry humor used among younger generations online, pointing at loneliness especially felt by some girls living alone.