Castelluccio rhymes with:
coluccio, galluccio, cappuccio, coluccio, cuccio, galluccio, guccio, muccio, nuccio, puccio
Castelluccio sounds like:
cadillac, cadillac's, cadillacs, castellucci, castilleja, castle's, castles, catalog, catalogs, catalogue, catalogues, catalyze, catholic, catholics, catlike, catolica, cattolica, catwalk, citadel's, coastal's, coattails, cocktails, codelco, costales, costello's, cutlass, cytology