Victory Girls were females who went out about every night, dating a lot of soldiers, sailors Marines, sometimes two or even three dates a night! Some "put out" and some did not. They all had the "patriotic" reason.
Patriotutes were prostitutes who tried to pass themselves off as Victory Girls - the difference was apparent when Patriotutes expected money for services rendered.
Victory Girls were generaly middle or poor class gals (as Helen noted) Some Victory Girls were quite nice average females who even ended up marrying someone they dated. Some Victory Girls also took the time to write notes to many of the servicemen they dated on a "final leave."
There was a story around at the time that prostitutes were complaining about the drop in their incomes because so many "Victory Girls" were giving it away for free!
On another note :
In general, in New England, waitressing is a more respected calling than in other parts of the US. IMHO it's because so many waitresses are college kids (the NE is loaded with colleges in a small area) or they are local folks who would not put up with being treated disrespectfully, nor would restaurant managers take kindly to anyone's "interfering with" a waitress.
I noticed a difference in the way waitresses are treated --and how they respond to unwanted advances or remarks -- in New England and outside New England on my several cross-country car trips.