Breakdown of words and meaning

The world is obviously post modern, which focuses on the subjective. For example, in "Toast," the author quotes "Toast is me. I am toast." Essentially, the individual has the right to make meaning for words. Toast is merely a word; the word's meaning must come from the individual. This is exactly where the breakdown of meaning and words occurs becuase the inadequetcy of our language can not understand reality. Reality is subjective. The author supports this by saying "Toast cannot be explained by any rational means." The rational means the author is aluding to is language. Reality is that 39 million trillion (whatever amount of people are on the earth) could possibly have a different meaning associated with a single word. Who is right? I would say the dictionary is right. But who wins if 39 million trillion people have a different meaning than the dictionary? I think our language is broken, and thus the individual has to clearly articulate why he chooses certain words. In essence, every word is boiled down to being a thing because thing is an abstract concept and allows for flucation in meaning and interpretation.