There are two wug
Because wug are like moose.
Unless it’s weg, like goose and geese.
Also, I’m kinda cheating because I’ve seen this before. The first time I saw it, I said wugs, which is exactly the point of the test.
If you ever get a chance, take a look at the other parts of the test. There’s multiple places where the kind of exceptions I used above would be available, but (and this is part of the point) the age of person the test was meant for wouldn’t have been exposed to those exceptions yet. And those exceptions are exceptions, which even adults don’t always think of when faced with this kind of thing. Like I said, my first thought when I initially saw this back in the day was “wugs”, not any of the exceptions you’d think of given time. And I play word games where that kind of thing matters.
I like to think that my English is quite good, but this one threw me off. Am I supposed to understand from the name wug that the plural of wug is not wugs?
Edit: if plural of wug is wug, then why isn’t plural of rug rug, but rugs? Or am I mistaken there as well?