No matter what you call it...

I have written extensive lists of the girls’ pronunciations, what they said and what it meant, but I can’t remember anymore, of course.

Like Benember: which is how Thing 1 says “Remember.”
And “Bunanoh” which Thing 2 says to tease you. We haven’t figured out if it’s a verb or a proper noun. The usage is kind of a happy accusation: “YOU’RE Bunanoh!” and you’re supposed to say “No, you’re Bunanoh!” Which of course makes her laugh wildly and poke her finger back at you to say “No, you’re Bunanoh!”
Thing 2 tells you she loves you “very, very muchly.”