Ancronym (the first T is commonly ignored, intended to have each letter spelt out "H-O-T-D" and not pronounced as "Hot Dee") for The House of the Dead a now classic Arcade Shooter (traditional aim your gun at a screen and fire and aim off the screen to reload and nothing else type game) about two agents from a paranormal defense organization on a mission to thwart the plans of a madman making animatronic creatures under the disguise of zombies.

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