shùqǐdàmuzhǐ
ㄕㄨˋ ㄑㄧˇ ㄉㄚˋ ˙ㄇㄨ ㄓˇ
Simplified 竖起大拇指
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 豎起大拇指 and it comes back until you know it.