She May be a Bag of Trouble Syphilis Gonorrhea Refrigerator Magnet. Art from the Allied War Effort. Could be your sister in law, maybe mother in law. Or the girl you never met in high school. Sleazy is her middle name.
WWII ad - This is an old ad during WWII which encouraged carpooling. First, there is a black and white fallacy, essentially saying you are either in support of the US or you are not. Basically, support the US and carpool, or join Hitler.