Cookies are known to bring a feeling of happiness and cheer to those that aren't allergic to any of their ingredients (and even some citizens whom reside in that catagory as well). Cookieness is pretty much the same as happiness. Maybe a little better though. You know, because cookies are delicious. I guess it could be a noun for something being tasty as well. Or not. I guess that's up to the reader.

Also, not to be confused with being crazy, or kooky. I believe that's spelled kookiness. So yeah, don't confuse them. Or else.
1) The Cookie Monster is a prime example of a creature simply overflowing with Cookieness.

2) Paul: *watching Sesame Street:* Hey John, that Cookie Monster seems to be a prime example of a creature simply overflowing with Cookieness.

John: You mean kookiness?

Paul: D*mn it, John, this is why I never watch TV with you.
by TheGrantagonist July 3, 2011
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That yummy delicious food that was absolutely RUINED BY THOSE GACHATUBERS, THEY'RE WORSE THAN THE DAMN CORONAVIRUS. Well most of them
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1: Cookie is basically a small sweet cake. It's usually round but could be made into squares and other shapes aswell.

2: A person of a specified kind.
1: That chocolate chip cookie was amazing grandma!

2: You're one tough cookie my darling.
by JujuBEarxx October 12, 2018
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Referenced in jokes as “the person everyone cums on” during orgies.
The four men looked Tonya directly in her ocular nerve and said “you’re the cookie, tonight.”
by Anyonmous Ass Cheek August 19, 2018
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A text file that is saved to your computer's hard drive every time you access a page on the Internet. A cookie file sends the information to advertizement agencies who will use the information to spam you with junk mail.
I have to download a program which destroys cookies so I won't get spammed.
by AYB March 10, 2003
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