What could it mean?
I've never seen the place open. The iron gate is always down, and there's nothing in the glass window.
"Sunny Pogangmacha" did not turn up any results in Google. Google thought maybe I had spelled it wrong and recommended I try "Sunny Pojangmacha" instead. That didn't turn up any results either, but I took the cue and finally figured out what a pojangmacha is.
