锁心锁情
[suŏ xīn suŏ qíng]
Lock Heart, Lock Love means binding both one's heart and emotions, indicating someone who decides to be emotionally restrained, refusing love or affection. The word 'lock' metaphorically signifies sealing off emotions from entering or exiting the heart. This net name is mostly used for describing a person who is unapproachable in terms of feelings.