Mill about aimlessly; To be oblivious to physical surroundings and/or philosophical or political ideology; being really angry without knowing what you are angry about.
Look at these idiots Marx-around a courthouse.
When you assume something or someone is from a certain country because they have something about them which is associated with that country when in reality they are from a different country. It's called the marx effect as many people think he is russian since he invented communism, which they associate with russia even though he was actually german.
The caramelldansen effect is a sub-category of the marx effect.