off of Sex and the City, some sort of slang term for the person you bring with you to a party to act as a fake date so as to keep others from hitting on you. (my guess is as good as yours)
Synonyms for plus 1
On this page, you will find 30 slang terms related to plus 1. Some of the top words include: dildo, juke, pookie, raise the roof, Moose, and 25 more.