(Chee-vah-knees)
The mumbling, run on,
ramblings of one
under the influence of, opiates (Heroin, OxyCodone, Demerol), barbituates (Seconal, Placidyl, Tuinal) and some psychotropics (Valium, Xanax, 4Bar), manner of speaking while "
On the nod".
From the words
"Chiva" -street term for Heroin and the suffix
"ese" -in the manner or language of.