The term 'GANGSTER's Girl' is often used to refer to a female associate of a GANGSTER or criminal. This term is also known as a 'moll, ' which is a four-letter word that can be found in crossword puzzles. A moll is typically a woman who is romantically involved with a GANGSTER and helps him with his criminal activities. She may also be involved in other illegal activities such as prostitution, drug dealing, and money laundering.