second grade definition of a certain particular word that rhymes with corn

So you'll remember my story from the other day about words that rhyme with corn and one of them said porn. Well, as it turns out, we talked about rhyming words again and this is apparently what she really meant. . .

(student) "Mrs. Bergland, porn rhymes with corn."

(me, rather tentatively, biting my nails) "Well, could you use that for me in a sentence."

(student) "You know, it's porn rain out."

(me, relieved and stressing the -ing) "No, you mean it's pouring rain out. POURING. Pour is the root word and -ing is the suffix. Pouring. Sorry, that word doesn't rhyme with corn."