Capitalism

Overview and Definition
Capitalism (also known as bourgeoisie-dick-sucking-competition) is an economically right wing ideology supposing that the means of production be privately owned and controlled, because apparently workers having no rights leads to better products for consumers or whatever bullshit the liberals have come up with.

Colloquial Definition
Capitalism is a blanket term that you, as a leftist, can use to simply blame all of your problems, despite if they have anything to do with capitalism whatsoever.

In a more serious sense, it is used (incorrectly) to describe free markets and welfare-lacking states, which it really doesn't have anything to do with. But hey, who cares?