cholas are gansger hispanic girls. they wear knee high socks, "expensive" clothing, thick eyeliner and drawn on eyebrows.
chongas are the cheap, trashy version of them. they usually wear men's clothing for a baggier look though and their clothes are a lot cheaper. they're also known for being skanky as fuck. they also love to speak in spanglish.
chongas are mainly found in miami and some of the other southern states. cholas are mostly found in bigger cities like new york and la and houston.