Democrat Party -- I had heard this before, but thought that it was only a common mistake made in America (like "nucular" or "labratory"), but I have since learnt that it is actually a demeaning epithet referring to the Democratic Party. So it should not be used. It is like calling Republican Party as Refucklican Party.
Prosperity Church -- The school of Christianity that believes that strong belief in God renders itself to wealth, health and prosperity. They are just like Hindus for that matter.
