smd

Doctor of Sacred Music 圣乐博士

shake my head（摇头），通常用于表达不赞同、失望、无奈等情绪。

缩写词

1、His behavior was so rude, I just had to smd.
(他的行为太粗鲁了，我只能摇头表示不满。)

2、I can't believe she said that, smd.
(我简直无法相信她说了那样的话，只能摇头。)