A sensitive tomato is a very sensitive, easily upset person. The sensitive tomato in the wild may turn bright red when angered and tends to overract. They overflow with the juicy seeds of pathos and regret, lapsing into sullen silence when their ridiculously extravagant plans for revenge fail completely. Shortened versions of "sensitive tomato" include sens, sensmato, and simply tomato. In honor of a famous tomato, Marty, the term tomarto is also used.

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