Romanaccio
/ˌrəʊməˈnatʃ(ɪ)əʊ/noun
The Italian dialect spoken in Rome; = Romanesco.
- Sometimes with pejorative connotation, as implying coarse or uneducated speech..
Origin
1960s; earliest use found in The Guardian. From Italian romanaccio dialect spoken in Rome from romano + -accio, suffix forming nouns with pejorative connotations.