LTNS = Long Time No See 好久不见

OIC = Oh, I See 哦，我明白

MorF = Male or Female? 男士或女士？

NOYB = None Of Your Business 不管你的事

NP = No Problem 没问题

NRN = No Reply Necessary 不必回信

OAUS = On An Unrelated Subject 一个不相关的主题

OBTW = Oh, By The Way 哦，顺便问一下

OMDB = Over My Dead Body 除非我死了

OMG = Oh My God 哦，我的天啊