I've found a few versions each one slightly different from the other, so I'm not entirely sure these lyrics are 100% correct, but I can assure you the meaning is the same!
La mamma di Rosina era gelosa…/ Rosina's mum was jealous
Nemmeno a prender l’acqua/ she didn't even send her
Con gli occhi bianchi e neri/ with her white and black eyes
Nemmeno a prender l’acqua la mandava/ she didn't even send her to take some water
Un giorno la Rosina andò al mulino…/ one day she went to the mill
Trova il molinaro/ she found the miller
Con gli occhi bianchi e neri/ with white and black eyes
Trova il mulinaro che dormiva/ there she found the miller sleeping
Svegliati molinaro che è già giorno…/ wake up miller, it's daylight
È venuta la Rosina/ Rosina has come
Con gli occhi bianchi e neri/ with white and black eyes
È venuta la Rosina a molinare/ Rosina has come here to mill
E già che è venuta la Rosina…/ and since she came here
La voglio macinare/ i want to mill her
Con gli occhi bianchi e neri/ with white and black eyes
La voglio macinare farina fina/ I want to mill her in fine flour
E mentre che il mulino macinava…/ and while the mill was grinding
La mano sempre in petto/ his hands on her breast
Con gli occhi bianchi e neri/ with white and black eyes
La mano sempre in petto le metteva/ he always put his hand on her breast
Sta fermo molinaro con le mani…/ keep your hands off me miller
Li tengo sei fratelli/ i have six brothers
Con gli occhi bianchi e neri/ with white and black eyes
Li tengo sei fratelli t’ammazzeranno/ i have six brothers they'll kill you
Non ho paura dei sei neppure di sette……/ I'm not afraid of six nor seven
Io tengo la pistola/ i have a gun
Con gli occhi bianchi e neri/ with white and black eyes
Io tengo la pistola caricata/ i have a loaded gun
È caricata co’ du’palline d’oro…/ it's loaded with two golden bullets
Le sparo contro a te/ i'll shot them against you
Con gli occhi bianchi e neri/ with white and black eyes
le sparo contro a te chi more more./ i'll shot them against you and we'll see who dies
"-Please tell me you're going to appeal to my humanity..."
"-Actually, I'm planning to threaten you."
"Well, if you'll excuse me, I have work to do. Evil plots don't just make themselves, you know!"