Although I do understand the allusion to the eternal struggle between the Clan MacDonald and Clan Campbell, I would not call this "wordplay", since there is nothing of a punning nature involving the names Campbell and MacDonald in it.
While possibly amusing, this is not a pun, and is less than anything we could actually label as LOL. It might provoke a smirk among the cognoscenti, but not actual vocalized laughter.
The Scottish clans were noted for treacherous behavior, but not cannibalism. It is true that both clans seem to have a member or two involved in the food service industries in the New World.