One who is unable to maintain or unwilling to roll with the necessary task at hand (such as the imbibing of copius amounts of alcoholic beverage). One who cracks under pressure, or is unwilling to push the boundaries. One who likes sparkly shit.

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