Brody knows kyle's "sight words"

Kyle has been learning his sight words at school, which consist of the most commonly used words in the english language..... The, where, he, what, why etc. The other day Kyle came into my bedroom telling another tale.... "Brody said I look like a butt!" I told Kyle (half heartedly) "Go and tell Brody that is not a nice thing to say, we don't use those kind of words!"

A few miutes later, Brody came into my room looking confused and said..."But is my sight word!"