[nandemo]

I've tried to use the rules of implicature to understand your comment but I couldn't.

You seem to be implying that one of the Wikipedia articles is wrong since it's unlikely that a soccer player would do advanced linguistics research. But you should consider a more likely hypothesis, namely, Wikipedia is correct and Patrick McBride the scholar and Patrick McBride the soccer player are different persons.

[Amnon]

I wasn't explicit enough about the fact that the article originally attributed the term to Grice, and then an anonymous editor changed it to this scholar who isn't mentioned anywhere else on the Web.

Also, in many cases the hypothesis that Wikipedia is correct isn't /very/ likely.