Noun: a friend who is usually only called upon by a friend when a more primary/prominent friend is unavailable.

Taken from the term “second string” in an athletic competition situation. In football, if the star quarterback gets injured during a play, the second string is called off the bench to replace him/her. A “Second String Friend” is essentially benched until needed, if ever.

Synonyms: Plan B, Second Choice, Secondary Friend, Benched Until Needed

BBS acronym for "Ren Pin Wen Ti", which is Chinese, roughly meaning "get over it, it's not your fault, maybe it's because your moral quality is not good." This can be always used to explain the different outcomes of two same tings done by different people. Of course it's just for fun