A black squirrel. Generally larger than your average red squirrel. They look at you with their mean little beady eyes and laugh at your dogs as they tease them.
It's a dog's personal life goal to catch one of these mangly little beasts.
John: Was that a dog that just bounded across the street?
Petunia: No man, that was a gangster squirrel.
John: Way cool dude.
My dog was rolling around contentedly in some dead fish, when he spotted a gangster squirrel making it's way up a tree. He ran towards it, barking maliciously. The g-squirrel laughed and continued up.
A gangster is a high school drop out that will grow and sell drugs for the rest of they're life. They will also carry a pea-shooting 9 millimeter and use it when a drug deal goes bad. They will also drive piece of crap cars with 22in rims that cost more then the car alone.
A lot of people in America. You can find a Gangster walking down the street in LA real easily.
Someone who thinks he is tough like a gangster but is actually as insubstantial as a ghost. Someone who tries to appear bold but is actually frightened by many mundane things.
That gangster ghost said he would fight but then ran away in tears.