friendly pack
The pack of cigarettes a non-smoker keeps in their purse/possession for their friends in need of a cigarette.
Morgan: Crap, I'm all out of cigarettes.
Cherish: Here have one of mine.
Morgan: You smoke?
Cherish: No, this is my "friendly pack"
Cherish: Here have one of mine.
Morgan: You smoke?
Cherish: No, this is my "friendly pack"