a job (hours don't have to be 9 to 5).

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

Hours most people work for a living

A sub category of pornography, in which a hot 9 is standing next to a plain 5. The plain looks of the 5 allows the 9 to transcend the barrier of being a 9 and attain the perfection of being a 10.

An extremely hot chick who becomes much less so when she begins to talk, revealing the inner workings (or lack thereof) of her pea sized brain. Not a problem for short term satisfaction but greatly reduces any chance of long-term relationships. A 9 to 5 sometimes shows uncanny knowledge in certain areas, such as the names of Brad and Angelina's kids or the price of designer handbags.

A 9 to 5 is a main chick being compared to weekdays. The metaphor originated from SZA's "The Weekend".