When you should've shaken twice, but only shook once, and a mark is left on your pants.

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

My buddy wears the same sweat pants all the time around hot chicks... He occasionally gets boners 4 times a day. After multiple months of his premature drippage his sweats began to form a "tip stain.# A case of the TS... #TS