In my days as a wee lad, we never bothered with writing it down. We would just walk up to someone and ask them to spell "icup", but oh, we had variations. I can remember one kid saying to me, "spell icup and then say funny colors". This one made no sense to me, even by the rules of second grade humor. Why would you want someone to tell you that you pee funny colors? But I said it, and I was made fun of for five or so minutes. Whatever.