'Jersey Shore' -- New Girl A Season 1 Reject

The newest guidette on "Jersey Shore" knows all about rejection -- producers kicked her overly-tanned ass to the curb when she tried out for Season 1 ... and TMZ has obtained



The foulmouthed Snook-alike -- 23-year-old Deena Nicole Cortese -- originally auditioned for the show last year ... right around the time Snooki, The Situation and the rest of the cast interviewed for a spot on the show. 

It's unclear why Deena didn't make the show the first time around -- during her audition, she drops the F-bomb 21 times in 3 minutes.