As a kid, I had a small dictionary, so I checked whether "gullible" was in it in order to mess with my little sister. It wasn't there, but I still got in trouble when my mom overheard me telling my sister, "Did you know gullible is not in this dictionary?"
I was miffed because I was telling the truth.
He has a pocket in his cape. It's where he keeps his Clark clothes, shoes, and glasses when he's Superman - super-compressed first, of course.