No Russian

Unarguably the most controversial aspect of popular video game Modern Warfare 2 (or just in video gaming altogether).
A level early on in the game, which is the catalyst to the rest of the story line, where an undercover CIA agent joins a group of Russian ultranationalist terrorists to engage in killing innocent civilians at Sheremetyevo International Airport in Moscow (renamed Zakhaev International Airport, after the prequel Call of Duty 4's antagonist).
You don't need to kill anyone to successfully complete it and at the end, you get killed after being found out that you're an American secret agent. Whilst you lie in cold blood and the Russians escape, the authorities find you which causes mass conflict on both sides of the Pacific.
In certain territories, this level is modified so that killing anyone results in instant mission failure or it has been removed completely. The level can be skipped at no penalty and no reward will be gained from successfully completing it.

An accent you can do to prevent yourself from getting mugged in a dark alley.

anything big

A fascinating language spoken by nearly 300 million people worldwide. It is somewhat difficult to pick up because of its six noun cases, but it is the vehicle of one of the world's richest and most beautiful literatures. Much harder than Spanish but more interesting.

a person who is born anywere in the world, but has Russian blood. usually blue eyes, light brown hair...very strong, and very strong drinkers. good, loyal friends--but run fast if you piss them off. great scientists, chess players, and hockey players. Men are real fighters and will not give up at anything. Russian girls seem to be very desirable, check out Mel Gibson's new wife.

The people who are behind EVERYTHING. They have caused all the world's problems and fixed all the world's problems.

Modifier added to a verb to explain the extreme level of insanity required to engage in the activity or the level of physical danger currently being ignored... Or both.