Quote Originally Posted by Swede74 View Post
The word I'm curios about is "Губчека". I'm thinking perhaps it means a set of rules, or a moral code, that criminals are supposed to live by. I could be completely wrong though.
Губчека = Губ ЧК => Губернская Чрезвычайная Комиссия
To say "И за ней следила Губчека" is roughly equivalent of saying the gang was so ruthless and invincible that the matter required special attention of the FBI; the local police was not enough.

Quote Originally Posted by Swede74 View Post
I wonder what "Мурёночек" and "котёночек" mean.
Мурёночек is a diminutive of Мурка.
"Котёночек" is a word play. Мурка is a diminutive of Мария. It's very uncommon today, but it used to be common in the past. Also, Мурка - is a traditional female cat name for the lack of a real name because the first syllable "Мур" resembles of a sound a cat makes when purring. So, the author of the song has a girlfriend named Maria and calls her also a kitten.

To address your later questions, the following is a translation of some of the slang words used:

1. перо = a feather => a knife

2. маслинa = an olive => a bullet

3. шухерить, шухaрить => infiltrate (in this context)
The long origin of this is said to be from Odessa where many of the thieves were Jewish and spoke Yiddish in different dialects, so шахар, шухар, шухер, and шойхер are basically the same word meaning "morning". The thieves had a designated person who "stood/watched the morning" while the rest of the thieves were doing their theft at night. In the morning they had to stop. Also, the "morning" (=stop the theft or robbery) could come early if a stranger or a police passed nearby. With time, the word "шухер" started to just mean "danger". In the context of this song, the word is used in that general sense meaning Maria infiltrated the gang putting the entire gang in danger. The proper name for Maria should be "мусор" or "мойсер" meaning "traitor". However, the word "мусор" is now used exclusively to denote a policeman.

4. малина = dwelling (in Yiddish) => the place where the gang is based

Hope it helps.