This was fun. I wish I'd had a very young child here to guide me. To compensate, I set my adult self aside and reverted to three. Oh, my, no wonder kids have such fun with words. As a 3 year old (who grew up speaking a mountain dialect of American English until starting school), I found myself sticking for the most part to basic rules. Would I have come up with wughouse at that age? I don't know, but that is what seemed obvious to me. After all, all my relatives had chicken houses, rabbit houses, pig pens, sometimes dog houses, etc. So I think I probably would have. My family were well-read and creative with language, and we have always liked wordplay. That may be why wughouse sounded natural to me.
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