When you go to the beach and partake in frivolous activities such as rolling in the sand, swimming and possibly sex, and on your return home, you find that so much sand has accumulated in your vagina that when you squeeze it out, a perfectly formed castle is produced.

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