Definitions by NoCo White Chocolate

River Rat 

Those born and/or raised in East Saint Louis. Often children of prostitutes and/or strippers. They go into St. Louis looking for people to lure back to their home with promises of sexual gratification, only to rob them.

He planned to go to the East Side to bang some river rats he picked up in a bar, and the next day he couldn't find his car.

River Rat by NoCo White Chocolate January 23, 2011