Definition: the female companion of a male criminal
Basically, this is the “Bonnie” in “Bonnie and Clyde.”
Why I Looked It Up
In a description of the characters in New Jack City:
His gang consists of his best friend, Gee Money; enforcer Duh Duh Duh Man; gun moll Keisha; Nino’s girlfriend, Selina; and her tech-savvy cousin, Kareem.
I had seen the term once before describing Christina Hendricks performance in a review of the film Drive:
Disappearing lithely into an extended cameo as a skanky gun moll […]