The period following any surgical procedure (involving general anesthesia) where one feels like absolute crap for a duration of time. For most shorter procedures, this period can literally be mere hours. The hangover includes both the time in the recovery room, as well as the complete recovery back to how you felt prior to surgery.

For longer, more complicated procedures however, that period can take several days before you start feeling like a human being again.

As with traditional hangovers, when you're having the surgical variety, you tend to feel not unlike death warmed over.

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