A common argument of many atheists is that the word "god" is unintelligible, incoherent, inconsistent, etc, and therefore, they have no idea what you are talking about when you use it, and thus, they obviously cannot believe in something which hasn't even been defined.
As an atheist, I think that argument stinks to high heaven.
So, what say you? Is the word "god" meaningless and undefined? Is it fair to say that you have no concept of what someone is talking about when they use that word? What is the defense of this argument?
The problem is that most people, themselves, don't even have a clear idea of what they mean by "god."
Let us define God as Anselm did "....... we believe that thou art a being than which nothing greater can be conceived."