Human Nature: Toilet and Curiosity

A friend asked me (jokingly, I suppose) whether my husband keeps the Webster dictionary in the toilet. Well, as you can see, no, because the Scrabble player's Bible is the Collins Scrabble Dictionary.

The rest of the objects belong to me.
And since toilets are something inextricably connected to human nature, there is something I'd like to ask all Scrabble players (this is the curiosity part of the post). What would you think about a game in which your opponent could challenge you to explain the meaning of any word played? Or the hardcore version: explanation, etymology and first recorded use. Oh, I love the OXFORD ENGLISH DICTIONARY!