沒心沒肺活着不累
[méi xīn méi fèi huó zhe bù lĕi]
Living carefree as if devoid of compassion or conscience (literally 'without a heart and lungs'). It suggests a desire to live more freely and lightly without too many concerns or worries. Some may use this username when they hope to relieve themselves from excessive considerations and stresses of life