no, it's not chill madi. no local says that.
It's petrol bunk. petrol bunk!
common usage: Turn right after the petrol bunk.
try using it in everyday conversation, it makes an expensive trip to the fossil fuel outlet much more exciting. as if you're in the 2nd world war and dodging the luftwaffe to get to the bunker.
does anybody know of the origin of the phrase? is it a linguistic anomaly restricted to bangalore or a widespread phenomenon of the deep south?