South Park -- KIM KARDASHIAN'S A HOBBIT ... She's a TERRIBLE Role Mod

Kim Kardashian is a FRAUD who's poisoning the minds of impressionable young women ... because in real-life, she's got the body of a HOBBIT ... this according to the people at "South Park."

Trey Parker and Matt Stone blasted Kim K on last night's episode -- and it all started when Butters refused to date an overweight, ugly classmate because she doesn't look like his dream woman Kim K.

That's when Wendy unloads -- "Kim Kardashian is a short overweight woman who manipulates her image and makes average girls feel horrible about themselves."

She added, "In real life, Kim Kardashian has the body of a Hobbit!!!"

Throughout the episode, Kanye West appears and tries to convince everyone Kim is not, in fact, a Hobbit ... but even KW isn't entirely convinced.

It's not the first time South Park's taken aim at celebrities -- they've gone after everyone from Paris Hilton to Michael Jackson and, of course, Tom Cruise.

Kim Kardashian