When someone keeps rambling on about things you don't know about.

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

Flipping a tit of a obese man

to flip out, stressin' it, also known as "flippin' caps"

The act of having intercourse with a man or woman possessing a rather flat ass.