The Private Language Argument As long as I used the term in a coherent manner, I would have to say I am using it "correctly", according to my own rules.
For example, if I am on a desert island, and write the symbol "s", every time I find something funny, I have established a rule for myself as between "s" and funny things.
Seems perfectly intelligible to me. Intelligible enough that when I write "s" when I encounter something that isn't funny, I have enough grounds to tell myself that I've made an error.