Bloody Mary, the cocktail. Popularized by Adam Sandler and David Spade's sketch "Dude", in which a group of surfers, stoners, and ganstas get drunk and crash a train.

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

when two women have their menstrual cycle at the same time.