Those include OMG (Oh my god), LOL (laughing out loud), TMI (too much information), FYI (for your information) and BFF (best friends forever).

其中就包括OMG (Oh my god/额滴神啊), LOL (laughing out loud/放声大笑), TMI (too much information/说得太多), FYI (for your information/仅供参考) 以及BFF (best friends forever/永远的好朋友)。

youdao

It is difficult enough to decode "OMG" (Oh my God) "BFF" (best friends forever) and "GTG" (got to go), let alone understand why it's funny to call something a "fail" (but not a "failure").

WSJ: Mastering the Finer Points of American Slang