(with) a (or one's) hand in the cookie jar
"cookie jar." YourDictionary, n.d. Web. 12 December 2018. <https://www.yourdictionary.com/cookie-jar>.
cookie jar. (n.d.). Retrieved December 12th, 2018, from https://www.yourdictionary.com/cookie-jar
(plural cookie jars)
Yes, I'd like to receive Word of the Day emails from YourDictionary.com
By continuing, you agree to our
Please set a username for yourself.
People will see it as Author Name with your public flash cards.