hoodrats are promiscuous females that go out at night with the intention of getting nailed. previously, the term was limited to use my urban males. With the release of "40 year old virgin", the term has leaked into the mouths of upperclass white males. Of course it is used with sarcastic overtones. If you are inexperienced sexually, what you want to do is knock out 10 to 20 hoodrats before going for the girl you really want in order gain some knowledge first.
Ryan: "Excuse me driver, where can we find some hoodrats?"
Bellhop driving green range rover back from Teazer's: "I don't know man"