A slang reference to a female or male that is known for their promiscuos sexual activity whereby they openly and willingly allow the frequent use of their vagina and/or their anus for the sexual gratification by many different and multiple partners.
Frank: What's up Broh! What's new?
Stan: I finally got a date with Wendy that works at the Cafe on the first floor?
Frank: Are you kidding me?
Stan: Yea. Why? What's wrong?
Frank: Dude that girl is one Crowded Subway. Better wear a raincoat.
Stan: Well Sh**!
Stan: I finally got a date with Wendy that works at the Cafe on the first floor?
Frank: Are you kidding me?
Stan: Yea. Why? What's wrong?
Frank: Dude that girl is one Crowded Subway. Better wear a raincoat.
Stan: Well Sh**!
by Eaton Holgoode March 13, 2014