They're mimicking someone who's trying to say the word dictionary but ironically lacks the diction to articulate it and instead says 'wordbook'
It is humorous because of the implication that extreme right wingers ala Fox news and it's viewers are illiterate hillbillies. They're not. They're just insane.
I posted this elsewhere in the thread. Apparently the N-word was only banned from tournament play four years ago. I shit you not. So I guess that's what they're mad about.
Not that I like that word but the only rules we run by is literally if it's in the dictionary "Websters" then it's allowed. But it's interesting that the tournament has banned it, but not surprising.
There is an official Scrabble dictionary that tournaments go with. They can put in and take out whatever they want. They could have taken it out a long time ago.