Sweetest and genuine woman you've ever met. She's the girl that gives the shirt off her back to the person she hates the most. Only reason she's called a 'Dirty Rachel', is because if you actually cross her(it takes a lot to cross a Rachel, you gotta be hurting her family), you fucked.
You didn't mess with her fam, bro you bout to see Dirty Rachel.
When, on Halloween, a girl gives you head in an alleyway. Suddenly, a car will pass by and startle you, thus causing you to paint a cummy portrait on her face.
*At Halloween Party*
**A guy and galmeet**
Guy: Hey, wanna be my dirty Rachel?
Girl: Boy, do I! Where's the nearest alley?