Is a contraction of the words pill and Chillicothe. Chillicothe is a small city that sits in the scioto valley in south-central Ohio. The highway that goes thru the city is a well known drug trafficking route, linking Columbus and parts of Kentucky. The rapid increased abuse of pills in the region, starting in the late 1990's, is what led to the nickname.
Pillipokaali is the definition of a person not capable of speaking clearly, so he/she googles/searches every type of definition of a particular word, in hopes of sounding like a superior person. You can spot a pillipokaali, if hes/her keyboard can be heard typing in the background and he/she always takes a minute to start talking, and is very hypocritical from time to time.
"Hey, did you know that Gary is such a pillipokaali, he searches every word he speaks. It's annoying because you can hear his keyboard clearly typing in the background when he talks."