I am familiar with the term, "shikker". My wide knowledge of the lingo probably developed because I am a half-breed...................Litvak on my father's side, galiztiana on my mothers'.
I have a modest acquaintance with the lingo since one of the docs at work gave me a list of important words to understand, with their fine definitions. Of course I've no idea where that list is now and I have some memory deficits for forty year old information, so I have to resort to frowning in confusion from time to time.
FYI, "gantsah" means the whole thing. Megillah refers to the book of Esther, which is read at the festival of Purim. In Yiddish slang, sometimes referring to "megillah" means making a big deal out of something.