Singledoom is the level below singledom which is "the state of being unmarried or not involved in a long-term relationship".

Singledoom is the seemingly infinite state of being single while all your friends hook up, make you sick with copious PDA, marry, breed, are rarely seen again seemingly too captivated by their attached bliss to appear, except at their wedding or baby showers; while you remain dateless, sexless and happy couples encourage you to "put yourself out there" whilst referring to you as bitter behind your back.

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