To pass gas in a short woman's mouth while waiting in line at a merchandise gift shop. The key is to fart in the woman's mouth while stepping on her toe, causing her to open her mouth and accepting the fart spray directly into her mouth. Apologize for stepping on her toe, and simply walk away.

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