Nobody here knows shit about racism, but it doesn't stop everyone from talking up a storm.

Racism isn't words. It's an attitude and a set of held beliefs. If you say "nigger" in a conversation, but in all honesty do not consider blacks to be inferior or objectionable, then you're not racist. If said person says "nigger" to a black person and the black person objects, usually the first person will refrain from using the word so as to not offend the black person. This is not rocket science. It's basic human nature and principles of human decency. The same goes for every race, ethnic group, gender, and every other worldly distinction which separates us from one another.

You could be squeaky clean in your lexicon and be the world's worst racist.