So you will notice that that's KANES. Definition, that he is telling you was the word he used well before it was used- and HE's telling you the definition of the word got changed , to mean off the top, and then we're supposed to take YOUR history lesson over Kanes? Please tell me why I should believe you over him.
And anyway, you're just pointing out that yes, words and have several different uses, so if you see the word being used and you KNOW what's meant by it, you're the one trying to make a strict definition of it. I do sometimes use the word "freestyle" to mean the same as "off the top" but I don't get the word Nazis who always come on these type threads to tell people what they ought to be saying when they KNOW what they mean. If you see someone say freestyle and then you see a guy doing written rhymes, then guess what they meant?