back to slovenia
a comment indicating that a woman you've just seen is not attractive enough to warrant your attention or entry into a party, bar, or event.  from the scene in the movie "Ali G Indahouse" when he proposes an immigration policy in the UK of only allowing "fit women" into the country.  A procession of hotties comes by and he goes "fit, fit, fit, fit..." and a homely girl comes by and he goes, "BACK TO SLOVENIA"
So these random chicks tried to get into the party but I was like hey, back to slovenia!