Someone who either lives or represents El Rio, California. Usually low life wannabegangsters who frequent Walmart stores and attempt to steal shit only to be caught and think they are bad ass mofos. They start fights only to run away from it.
River Rat: Sup foo i just got out for stealing from walmart
CO Boy: La Colonia Chiques Eastside, fuckin pussy.
*River Rat Runs*
CO Boy: Get back here bitch, 187 on a river rat.
You see I made up my mind when I was seventeen,
I ain with no marriage and a wedding ring,
I be a player fo life so wheres my wife,
Probably at the rehab stuck on the pipe,
cause she must be smokin and Im not jokin
Too short baby comin straight from oakland,
Got way mo bitches than I ever need,
I put that on a big fat bag of weed,