“Chi nnicchi nnacchi”
The expression “chi nnicchi nnacchi” is used in Sicily as an exclamation, meaning “what does that have to do with this?”
Its origin is Latin, derived from the phrase
“quid hic in hac (re)?”
which literally means
“what (does) this (have to do) with this (thing)?”
Over time, through phonetic resemblance, the expression morphed into the playful tongue-twister in use today in Sicily.